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  • Question 1 - Which of the following stimuli increase growth hormone secretion? ...

    Incorrect

    • Which of the following stimuli increase growth hormone secretion?

      Your Answer: Insulin-like growth factor I (IGF-I)

      Correct Answer: Ghrelin

      Explanation:

      Ghrelin is a hormone which serves as an endogenous ligand for the growth hormone secretagogue receptor. It acts on the pituitary and the hypothalamus by affecting the vagus nerve. It acts on the somatotrophs of the anterior pituitary, GHRH-secreting neurons, and on GHIH-secreting neurons in the hypothalamus, causing a time-dependent and pulsatile stimulation over the secretion of growth hormone.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      33.4
      Seconds

  • Question 2 - Which of the following is correctly paired? ...

    Incorrect

    • Which of the following is correctly paired?

      Your Answer: I cells : IgF – i

      Correct Answer: F cells : pancreatic polypeptide

      Explanation:

      Pancreatic polypeptide is secreted by F-cells, which represent the smallest proportion of islet cells in the pancreas. These cells establish the embryological origin of the pancreas. Pancreatic polypeptide regulates endocrine and exocrine activities by the pancreas.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      40.1
      Seconds

  • Question 3 - The residual cleft of the intermediate lobe of the pituitary is lined by...

    Incorrect

    • The residual cleft of the intermediate lobe of the pituitary is lined by follicles resembling which human gland?

      Your Answer: Adrenal medulla

      Correct Answer: Thyroid

      Explanation:

      The cells located between the two main pituitary lobes form what is known as the intermediate pituitary. This area secretes melanocyte-stimulating hormone and it is only a few cell layers thick. It is rich in follicles filled with colloid, and lined by basophilic cells. This configuration resembles that of another important gland: the thyroid.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      36.8
      Seconds

  • Question 4 - Which are the main hormones secreted by the posterior pituitary gland. ...

    Correct

    • Which are the main hormones secreted by the posterior pituitary gland.

      Your Answer: Oxytocin and vasopressin

      Explanation:

      The posterior pituitary gland secretes oxytocin and vasopressin (antidiuretic hormone). These hormones are stored in Herring bodies before being secreted into the bloodstream.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      12.1
      Seconds

  • Question 5 - As assessed by immunocytochemistry and electron microscopy, the anterior pituitary gland contains how...

    Incorrect

    • As assessed by immunocytochemistry and electron microscopy, the anterior pituitary gland contains how many different types of cells?

      Your Answer: 8

      Correct Answer: 5

      Explanation:

      The pituitary is divided into three sections

      -the anterior lobe which constitute the majority of the pituitary mass and is composed primarily of five hormone-producing cell types (thyrotropes, lactotropes, corticotropes, somatotropes and gonadotropes) each secreting thyrotropin, prolactin, ACTH, growth hormone and gonadotropins (FSH and LH) respectively.

      There is also a sixth cell type in the anterior lobe -the non-endocrine, agranular, folliculostellate cells.

      The intermediate lobe produces melanocyte-stimulating hormone and endorphins, whereas the posterior lobe secretes anti-diuretic hormone (vasopressin) and oxytocin.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      166.2
      Seconds

  • Question 6 - Which of the following skin coloration abnormalities occurs due to adrenal insufficiency due...

    Correct

    • Which of the following skin coloration abnormalities occurs due to adrenal insufficiency due to primary adrenal disease?

      Your Answer: Hyperpigmentation

      Explanation:

      Addison’s disease, also known as primary adrenal insufficiency, or hypocortisolism is an endocrine disorder. Hyperpigmentation is one of its most common signs; it occurs as a result of an increase in pro-opiomelanocortin to produce more ACTH in response to the decreased levels of cortisol. Pro-opiomelanocortin is a precursor of melanocyte stimulating hormone (MSH), which stimulates melanocytes, causing darkening of the skin.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      102.9
      Seconds

  • Question 7 - Which hormone secreting cell of the human anterior pituitary gland secretes growth hormone?...

    Correct

    • Which hormone secreting cell of the human anterior pituitary gland secretes growth hormone?

      Your Answer: Somatotroph

      Explanation:

      Somatotroph cells are responsible for the production of growth hormone. Somatotrophs occupy nearly 40% of the total surface area of the anterior pituitary, and they are acidophilic in nature.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      29.8
      Seconds

  • Question 8 - What is the most common cause of primary hyperaldosteronism? ...

    Incorrect

    • What is the most common cause of primary hyperaldosteronism?

      Your Answer: Adrenocortical adenoma

      Correct Answer: Bilateral idiopathic adrenal hyperplasia

      Explanation:

      Primary aldosteronism, also known as primary hyperaldosteronism or Conn’s syndrome, is excess production of the hormone aldosterone by the adrenal glands resulting in low renin levels. Primary hyperaldosteronism has a number of causes. About 66% of cases are due to enlargement of both adrenal glands and 33% of cases are due to an adrenal adenoma that produces aldosterone. Other uncommon causes include adrenal cancer and an inherited disorder called familial hyperaldosteronism

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      31.1
      Seconds

  • Question 9 - Which of the following is least recognised as a potential complication of acromegaly?...

    Incorrect

    • Which of the following is least recognised as a potential complication of acromegaly?

      Your Answer: Colorectal cancer

      Correct Answer: Mental retardation

      Explanation:

      Acromegaly is a condition that results from excess growth hormone (GH) after the growth plates have closed. It is typically due to the pituitary gland producing too much growth hormone. In more than 95% of people the excess production is due to a benign tumour, known as a pituitary adenoma. The condition is not inherited.Complications:Severe headacheArthritis and carpal tunnel syndromeEnlarged heartLiver fibrosis and bile duct hyperplasiaHypertensionDiabetes mellitus (excess of GH leads to insulin resistance)Heart failureKidney failureColorectal cancerCompression of the optic chiasm leading to loss of vision in the outer visual fields (typically bitemporal hemianopia.)Increased palmar sweating and sebum production over the face (seborrhoea) are clinical indicators of active GH-producing pituitary tumours.hypertensiondiabetes (>10%)cardiomyopathycolorectal cancer

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      32
      Seconds

  • Question 10 - Which of the following biochemical profiles is seen in a normal 65 year...

    Correct

    • Which of the following biochemical profiles is seen in a normal 65 year old female? (in comparison to a normal 24 yr. old female)

      Your Answer: Increased FSH, LH; decreased oestrogen, progesterone

      Explanation:

      During menopause, a woman’s number of ovarian follicles becomes depleted; as a result, oestrogen and progesterone levels drop, and LH and FSH levels increase. One of the criteria to diagnose menopause is the absence of menstrual period for a year, along with a serum FSH level increased to 30 mIU/ml or higher. LH also rises with the onset of menopause.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      44.6
      Seconds

  • Question 11 - Which one of the following features is least associated with primary hyperparathyroidism? ...

    Correct

    • Which one of the following features is least associated with primary hyperparathyroidism?

      Your Answer: Sensory loss

      Explanation:

      The signs and symptoms of primary hyperparathyroidism are those of hypercalcemia. They are classically summarized by stones, bones, abdominal groans, thrones and psychiatric overtones.

      Stones refers to kidney stones, nephrocalcinosis, and diabetes insipidus (polyuria and polydipsia). These can ultimately lead to renal failure.

      Bones refers to bone-related complications: osteitis fibrosa cystica, osteoporosis, osteomalacia, and arthritis.

      Abdominal groans refers to gastrointestinal symptoms of constipation, indigestion, nausea and vomiting. Hypercalcemia can lead to peptic ulcers and acute pancreatitis.

      Thrones refers to polyuria and constipation

      Psychiatric overtones refers to effects on the central nervous system. Symptoms include lethargy, fatigue, depression, memory loss, psychosis, ataxia, delirium, and coma.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      105.8
      Seconds

  • Question 12 - The reflex responses activated by cold are controlled by which area? ...

    Incorrect

    • The reflex responses activated by cold are controlled by which area?

      Your Answer: Thalamus

      Correct Answer: Posterior hypothalamus

      Explanation:

      The posterior nucleus of the hypothalamus is responsible for thermoregulation and thermogenesis. Studies have shown that the neurons in the posterior hypothalamus which mediate the reflex of shivering are sensitive to temperature; damage to this nucleus produces hypothermia.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      67.3
      Seconds

  • Question 13 - Which one of the following skin disorders is least commonly associated with hypothyroidism?...

    Incorrect

    • Which one of the following skin disorders is least commonly associated with hypothyroidism?

      Your Answer: Eczema

      Correct Answer: Pretibial myxoedema

      Explanation:

      Pretibial myxoedema is an infiltrative dermopathy, resulting as a rare complication of Graves’ disease (hyperthyroidism) and very occasionally occurs in non-thyrotoxic Graves’ disease and Hashimoto’s thyroiditis.

      Hypothyroidism typically presents with symptoms such as dry skin, brittle hair, and thinning of the outer third of the eyebrows. While skin conditions like dryness and hair changes are common in hypothyroidism due to reduced metabolic activity, acne is also not typically associated with it.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      32.8
      Seconds

  • Question 14 - Which enzyme is responsible for the conversion of testosterone to dihydrotestosterone? ...

    Correct

    • Which enzyme is responsible for the conversion of testosterone to dihydrotestosterone?

      Your Answer: 5α-reductase

      Explanation:

      The enzyme 5α-reductase synthesizes DHT from testosterone in the prostate, testes, hair follicles, and adrenal glands. This enzyme reduces the 4,5 double-bond of the testosterone. Relative to testosterone, DHT is much more potent as an agonist of the androgen receptor.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      36.5
      Seconds

  • Question 15 - The actions of dihydrotestosterone in male reproductive physiology include: ...

    Correct

    • The actions of dihydrotestosterone in male reproductive physiology include:

      Your Answer: Development of external genitalia in utero and at puberty

      Explanation:

      Dihydrotestosterone mediates the differentiation of the urogenital sinus and genital tubercles, leading to the fusion of the urethral and labial folds; thus, it leads to the development of external genitalia in the male.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      33.9
      Seconds

  • Question 16 - Which of the following stimulates glucagon release? ...

    Correct

    • Which of the following stimulates glucagon release?

      Your Answer: Exercise

      Explanation:

      Studies have shown a small increase in glucagon levels during stress tests and exercise. This occurs in response to the reduction of blood glucose levels during physical activity; epinephrine levels are also a stimulus for the release of glucagon during exercise, since it suppresses insulin, which accounts for its stimulatory effects on glucagon. The use of stored fats for energy during exercise also stimulates the release of glucagon.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      89.4
      Seconds

  • Question 17 - Where does the anterior pituitary receive most of its blood supply? ...

    Correct

    • Where does the anterior pituitary receive most of its blood supply?

      Your Answer: Portal hypophysial vessels

      Explanation:

      The anterior pituitary receives its arterial supply from the superior hypophyseal artery, which is a branch of the internal carotid that forms a capillary around the hypothalamus; thus forming the hypothalamo-hypophysial portal system.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      19.7
      Seconds

  • Question 18 - An important hormone controlling the differentiation of monocytes to osteoclasts, by inhibiting the...

    Correct

    • An important hormone controlling the differentiation of monocytes to osteoclasts, by inhibiting the RANKL/ RANK interaction is called?

      Your Answer: Osteoprotegerin

      Explanation:

      Osteoprotegerin, also known as osteoclastogenesis inhibitory factor (OCIF) is a glycoprotein that acts as a cytokine receptor. It works as a decoy receptor for the receptor activator of nuclear factor-kappaB ligand (RANKL)/osteoclast differentiation factor, thus inhibiting the differentiation of osteoclasts, which are capable of resorbing bone. Osteoprotegerin has been proposed as a therapeutic agent for osteoporosis.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      19.7
      Seconds

  • Question 19 - On which chromosome is the gene for insulin located? ...

    Correct

    • On which chromosome is the gene for insulin located?

      Your Answer: Chromosome 11

      Explanation:

      Humans have 23 pairs of chromosomes, and usually, two pairs of copies of chromosome 11. It is one of the most complex, gene-rich chromosomes in the human genome, and it is associated with a number of diseases. Studies have shown they the human insulin gene is located on the short arm of chromosome 11.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      34.5
      Seconds

  • Question 20 - Where is thyroglobulin produced? ...

    Incorrect

    • Where is thyroglobulin produced?

      Your Answer: Colloid

      Correct Answer: Thyrocytes

      Explanation:

      Thyroglobulin, or Tg, is a protein that functions as the precursor to thyroid hormones. It is synthesized by thyrocytes and then secreted into the colloid. It also functions as a negative-feedback regulator of thyroid hormone biosynthesis.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      15.3
      Seconds

  • Question 21 - The apical enzyme responsible for the oxidation and reaction of iodide with thyroglobulin...

    Correct

    • The apical enzyme responsible for the oxidation and reaction of iodide with thyroglobulin is:

      Your Answer: Thyroid peroxidise

      Explanation:

      Thyroid peroxidase is an enzyme that is secreted into the thyroid colloid. It works by oxidizing iodide ions into iodine which are incorporated into thyroglobulin, in order to produce T3 and T4.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      136
      Seconds

  • Question 22 - Endotoxin will typically act on which one of the following cells, to produce...

    Incorrect

    • Endotoxin will typically act on which one of the following cells, to produce endogenous pyrogens?

      Your Answer: Neutrophils

      Correct Answer: Monocytes

      Explanation:

      Endotoxin, also known as lipopolysaccharides or lipoglycans, are molecules that consist of a lipid and a polysaccharide. They bind to many cell types, but especially to monocytes, promoting the secretion of proinflammatory cytokines, acting as a pyrogen.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      36.7
      Seconds

  • Question 23 - Which of the following cells secrete glucagon? ...

    Correct

    • Which of the following cells secrete glucagon?

      Your Answer: A cells

      Explanation:

      Glucagon counteracts hypoglycaemia and opposes insulin by promoting gluconeogenesis and glycogenolysis. It also decreases fatty acid synthesis in the liver and adipose tissue, and promotes lipolysis. It is secreted by the pancreatic islet α-cells. Its production is regulated by the insulin produced in β-cells.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      8.6
      Seconds

  • Question 24 - In which of the following are the enzymatic mechanisms for producing aldosterone found?...

    Correct

    • In which of the following are the enzymatic mechanisms for producing aldosterone found?

      Your Answer: Zona glomerulosa

      Explanation:

      The zona glomerulosa is the outermost layer of the adrenal gland. In it, aldosterone is secreted as a response to an increase in potassium levels, decreased blood flow, or renin. This secretion is regulated by the renin-angiotensin system.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      48.3
      Seconds

  • Question 25 - To which of the following plasma proteins is T4 most bound in plasma?...

    Correct

    • To which of the following plasma proteins is T4 most bound in plasma?

      Your Answer: Thyroxine-binding globulin

      Explanation:

      Thyroxine-binding globulin, also known as TBG, is one of the three transport proteins responsible for carrying T4 and T3 through the circulatory system. It carries most of the T4 present in plasma, which it binds to strongly, shielding the hydrophobic hormones from the aqueous surroundings.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      20.3
      Seconds

  • Question 26 - What causes increased insulin sensitivity? ...

    Correct

    • What causes increased insulin sensitivity?

      Your Answer: Exercise

      Explanation:

      Physical activity, through its effect on insulin sensitivity, is one of the main modifiable risk factors for type 2 diabetes. It is estimated that by each weekly 500 kcal increment in exercise related energy consumption, the lifetime risk of suffering from type 2 diabetes is reduced by 9%. Up to two hours after exercise, glucose uptake is elevated due to insulin independent mechanisms; however, insulin sensitivity remains increased for at least 16 hours after exercising.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      51.6
      Seconds

  • Question 27 - In the menstrual cycle, ovulation is triggered by: ...

    Incorrect

    • In the menstrual cycle, ovulation is triggered by:

      Your Answer: A pituitary LH surge due to due to an increase in GNRH pulses from the supraoptic nucleus in the hypothalamus

      Correct Answer: A pituitary LH surge due to the positive feedback effect of circulating oestrogens

      Explanation:

      FSH and LH are secreted to start the development of a follicle at the start of each menstrual cycle. A surge in oestrogen causes a positive feedback in the LH cells of the pituitary; this causes ovulation.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      68.9
      Seconds

  • Question 28 - The action of progesterone on different organs/systems includes: ...

    Correct

    • The action of progesterone on different organs/systems includes:

      Your Answer: Breasts: stimulation of lobular and alveolar development

      Explanation:

      Progesterone is a sex hormone which affects mainly the reproductive system. In the breasts, it mediates the lobuloalveolar maturation to allow for milk production; this is done in conjunction with prolactin. It acts to maintain female reproductive and sex characteristics.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      94.2
      Seconds

  • Question 29 - Which cell secretes parathyroid hormone? ...

    Correct

    • Which cell secretes parathyroid hormone?

      Your Answer: Chief cells

      Explanation:

      Parathyroid chief cells, also known as parathyroid principal cells or parathyroid cells, are the most prevalent type of cell in the parathyroid gland and the only ones present at birth. They secrete parathyroid hormone (PTH).

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      48.3
      Seconds

  • Question 30 - Which of the following is responsible for converting inactive cortisone to active cortisol...

    Correct

    • Which of the following is responsible for converting inactive cortisone to active cortisol in the adrenal gland?

      Your Answer: 11βHSD type 1

      Explanation:

      11β-Hydroxysteroid dehydrogenase, also known as HSD-11β or 11β-HSD, is a group of enzymes which catalyse the interconversion of active cortisol and corticosterone with inert cortisone and 11-dehydrocorticosterone.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      66.1
      Seconds

  • Question 31 - Where does the pituitary gland lie? ...

    Correct

    • Where does the pituitary gland lie?

      Your Answer: In a pocket of the sphenoid bone at the base of the brain

      Explanation:

      The pituitary lies in a small depression in the sphenoid bone, known as the sella turcica or Turkish saddle.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      22.7
      Seconds

  • Question 32 - Which of the following hormones would stimulate secretion of TSH? ...

    Correct

    • Which of the following hormones would stimulate secretion of TSH?

      Your Answer: TRH

      Explanation:

      Thyrotropin-releasing hormone, also known as TRH, thyrotropin-releasing factor, TRF is a hormone produced by the hypothalamus. It functions as a releasing hormone, promoting the production of thyroid-stimulating hormone or thyrotropin and prolactin.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      13.8
      Seconds

  • Question 33 - Pendrin is a Cl-/I- exchanger whose function is: ...

    Correct

    • Pendrin is a Cl-/I- exchanger whose function is:

      Your Answer: Transfer of iodide across the thyrocyte apical membrane into the colloid

      Explanation:

      Pendrin is an anion transporter present in the inner ear, thyroid and kidney. It regulates the entrance of iodide from the thyroid cell to the colloid space. It has been proposed that its role could be the maintenance of the ionic composition of the endolymph.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      54.3
      Seconds

  • Question 34 - Where does one find the thyroid receptors? ...

    Incorrect

    • Where does one find the thyroid receptors?

      Your Answer: Cell membrane

      Correct Answer: Cell nucleus

      Explanation:

      Unlike many of the steroid receptors, inactive receptors for T3 are located in the nucleus. T4 is first converted into T3 within the cytoplasm of the cell, T3 then enters the nucleus and binds to its receptor. The hormone-receptor complex can now bind to DNA and activate specific genes.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      33.9
      Seconds

  • Question 35 - In terms of relative steroid potency, how much prednisone is equivalent to 100mg...

    Correct

    • In terms of relative steroid potency, how much prednisone is equivalent to 100mg hydrocortisone?

      Your Answer: 25mg

      Explanation:

      Different corticosteroids have varying degrees of potency. 1 mg of prednisone is equivalent to 4 mg of hydrocortisone. Therefore, 25 mg of prednisone are equivalent to 100 mg of hydrocortisone.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      193.7
      Seconds

  • Question 36 - During bone growth-the epiphysis are separated from the diaphysis by actively proliferating cartilage...

    Incorrect

    • During bone growth-the epiphysis are separated from the diaphysis by actively proliferating cartilage known as:

      Your Answer: Active plate

      Correct Answer: Epiphysial plate

      Explanation:

      The epiphysial plate, physis, or growth plate, is a hyaline cartilage plate located near the ends of long bones; it consists of growing tissue. It is found in children and teenagers; in adults, it is replaced by an epiphysial line or epiphysial closure. The epiphysial plate is divided into zones: zone of reserve, proliferation, maturation and hypertrophy, calcification, and ossification.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      52.1
      Seconds

  • Question 37 - The net effect of parathyroid hormone on calcium and phosphate homeostasis is? ...

    Correct

    • The net effect of parathyroid hormone on calcium and phosphate homeostasis is?

      Your Answer: Increase in Ca, decrease in phosphate

      Explanation:

      Parathyroid hormone’s main target organs are the kidneys, bone, and intestine. In the kidney, it decreases reabsorption of phosphate and increases calcium reabsorption. It also promotes absorption of calcium from bone. PTH release results in a small drop in serum phosphate concentrations.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      20.6
      Seconds

  • Question 38 - Which of the flowing plasma proteins has the greatest affinity for T4? ...

    Correct

    • Which of the flowing plasma proteins has the greatest affinity for T4?

      Your Answer: Thyroxin-binding globulin

      Explanation:

      There are three principal plasma thyroid hormone-binding proteins, thyroxine-binding globulin (TBG), transthyretin (TTR), and albumin. TBG is synthesized in the liver and due to its relatively high affinity for iodothyronines, binds and carries approximately 70–75% of circulating T4 and T3.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      10.4
      Seconds

  • Question 39 - Within the hypothalamus, the dopamine-secreting neurones of the intrahypothalamic system have their cell...

    Incorrect

    • Within the hypothalamus, the dopamine-secreting neurones of the intrahypothalamic system have their cell bodies in which nuclei?

      Your Answer: Supraoptic

      Correct Answer: Arcuate

      Explanation:

      Arcuate nucleus dopaminergic neurons consist of a single group of neurons that project to the median eminence where they release dopamine into the hypophyseal portal circulation to inhibit pituitary prolactin secretion.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      37.8
      Seconds

  • Question 40 - Select the correct statement regarding the macro anatomy of the thyroid gland. ...

    Correct

    • Select the correct statement regarding the macro anatomy of the thyroid gland.

      Your Answer: It surrounds the trachea at the front of the neck.

      Explanation:

      The thyroid is located around the trachea, in the anterior portion of the neck. It is formed by two lobes which are connected by an isthmus. The presence of a pyramidal lobe, or third lobe, is considered to be a normal anatomical variant. It originates from the primitive pharynx and the neural crest and has a rich vascular supply.

    • This question is part of the following fields:

      • Endocrinology
      • Medicine
      196.7
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Endocrinology (26/40) 65%
Medicine (26/40) 65%
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