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  • Question 1 - Which one of the following statements is true regarding androgen insensitivity syndrome? ...

    Correct

    • Which one of the following statements is true regarding androgen insensitivity syndrome?

      Your Answer: They have no uterus

      Explanation:

      Androgen insensitivity syndrome means that patients are phenotypically males but they are resistant or insensitive to male androgen hormones. They do not have a uterus. Due to insensitivity to androgens these patients often have female traits but their genetic makeup is of male, 46XY.

    • This question is part of the following fields:

      • Embryology
      3.9
      Seconds

  • Question 2 - Branches V2 and V3 of the trigeminal nerve develop from which pharyngeal arch?...

    Correct

    • Branches V2 and V3 of the trigeminal nerve develop from which pharyngeal arch?

      Your Answer: 1st

      Explanation:

      Trigeminal nerve has three divisions, the first is the ophthalmic division that does not originate from any of the pharyngeal arches, the second and third divisions, namely, the maxillary and the mandibular region develop from the first pharyngeal arch.
      Pharyngeal Arches:
      1st = Trigeminal V2 & V3 (CN V)
      2nd = Facial (CN VII)
      3rd = Glossopharyngeal (CN IX)
      4th and 6th = Vagus (CN X)

    • This question is part of the following fields:

      • Embryology
      2.7
      Seconds

  • Question 3 - Which of the following is a feature of intestinal malrotation? ...

    Correct

    • Which of the following is a feature of intestinal malrotation?

      Your Answer: Ladd's bands

      Explanation:

      Ladd’s bands are the most common form of peritoneal bands in malrotation of the intestine.

    • This question is part of the following fields:

      • Embryology
      5.7
      Seconds

  • Question 4 - All of the following complications can be found in a pregnant patient with...

    Correct

    • All of the following complications can be found in a pregnant patient with a bicornuate uterus, except?

      Your Answer: Polyhydramnios

      Explanation:

      Women with a bicornuate uterus are at increased risk of recurrent abortions, premature birth, fetal malpositioning, placenta previa and retained products of placenta leading to post partum haemorrhage.

    • This question is part of the following fields:

      • Embryology
      3.9
      Seconds

  • Question 5 - The external carotid artery develops from which pharyngeal arch? ...

    Correct

    • The external carotid artery develops from which pharyngeal arch?

      Your Answer: 1st

      Explanation:

      The external carotid develops from the 1st arch. The common and internal carotid develop from the 3rd arch.

    • This question is part of the following fields:

      • Embryology
      4.9
      Seconds

  • Question 6 - Commonest cause of precocious puberty is: ...

    Correct

    • Commonest cause of precocious puberty is:

      Your Answer: Idiopathic

      Explanation:

      Precocious puberty can be defined as secondary sexual characteristics that occur before the age of 8 years in females and 9 years in males. In 80-90% of individuals it is idiopathic. Other causes include CNS anomalies and tumours, increased exposure to sex hormones/steroids, pituitary gonadotrophin secreting tumours and ovarian tumours etc.

    • This question is part of the following fields:

      • Embryology
      7.7
      Seconds

  • Question 7 - Branches V2 and V3 of the Trigeminal nerve develop from which pharyngeal arch?...

    Correct

    • Branches V2 and V3 of the Trigeminal nerve develop from which pharyngeal arch?

      Your Answer: 1st

      Explanation:

      1st Arch = Trigeminal V2 & V3 (CN V) 2nd Arch = Facial (CN VII) 3rd Arch = Glossopharyngeal (CN IX) 4th and 6th Arches = Vagus (CN X)

    • This question is part of the following fields:

      • Embryology
      4.1
      Seconds

  • Question 8 - Androgen insensitivity syndrome is characterised by which one of the following karyotypes? ...

    Correct

    • Androgen insensitivity syndrome is characterised by which one of the following karyotypes?

      Your Answer: 46XY

      Explanation:

      Genetically, patients suffering from androgen insensitivity syndrome are 46XY. They are males but insensitive to male hormones i.e. androgens.

    • This question is part of the following fields:

      • Embryology
      2.8
      Seconds

  • Question 9 - How many days after fertilisation does the blastocyst hatch from the zone pellucida?...

    Correct

    • How many days after fertilisation does the blastocyst hatch from the zone pellucida?

      Your Answer: 5-Jul

      Explanation:

      Shortly after the morula enters the uterus, around the 4th day after fertilization, a clear cystic cavity starts forming inside the morula. The fluid passes through the zona pellucida from the uterine cavity and hence forms the blastocyst.

    • This question is part of the following fields:

      • Embryology
      12.7
      Seconds

  • Question 10 - Which of the following hormones is secreted by the corpus luteum in a...

    Correct

    • Which of the following hormones is secreted by the corpus luteum in a non pregnant state?

      Your Answer: Progesterone

      Explanation:

      The corpus luteum is formed from the granulosa cells of the mature follicle. The structure functions as a transient endocrine organ which secretes mainly progesterone with additional secretion of oestradiol and inhibin, which serve to suppress FSH levels. In the event of no pregnancy, the corpus luteum stops producing progesterone and degenerates into the corpus albicans.

    • This question is part of the following fields:

      • Embryology
      2.8
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Embryology (10/10) 100%
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