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  • Question 1 - The muscle that forms the posterior wall of the axilla along with the...

    Incorrect

    • The muscle that forms the posterior wall of the axilla along with the scapula, subscapularis muscle and teres major muscle is the?

      Your Answer: Supraspinatus

      Correct Answer: Latissimus dorsi

      Explanation:

      The latissimus dorsi forms the posterior wall of the axilla along with the scapula. It is responsible for extension, adduction, transverse extension also known as horizontal abduction, flexion from an extended position, and (medial) internal rotation of the shoulder joint. It also has a synergistic role in extension and lateral flexion of the lumbar spine.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      49.1
      Seconds

  • Question 2 - Which muscle originates from the common flexor tendon of the forearm? ...

    Correct

    • Which muscle originates from the common flexor tendon of the forearm?

      Your Answer: Flexor digitorum superficialis

      Explanation:

      The medial epicondyle of the humerus is the site of origin of this group of muscles of the forearm. It originates from the medial epicondyle of the humerus by a common tendon. Fibres from the deep fascia of the forearm, near the elbow and septa, pass from this fascia between the muscles. These muscles include the pronator teres, palmaris longus, flexor carpi radialis, flexor carpi ulnaris and flexor digitorum superficialis.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      46.7
      Seconds

  • Question 3 - A 40 year old man sustained a fracture to the surgical neck of...

    Correct

    • A 40 year old man sustained a fracture to the surgical neck of his left humerus. Which of the following arteries is suspected to be injured in this case?

      Your Answer: Posterior humeral circumflex

      Explanation:

      The posterior humeral circumflex artery arises from the axillary artery and runs with the axillary nerve through the quadrangular space which is bounded laterally by the surgical neck of the humerus. After winding around the surgical neck of the humerus, it is distributed to the deltoid muscle and the shoulder joint. Thus fractures in the surgical neck of the humerus could result in an injury to this artery.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      26.4
      Seconds

  • Question 4 - When you rest your elbows on a desk, what bony landmark of the...

    Correct

    • When you rest your elbows on a desk, what bony landmark of the upper limb are you resting on?

      Your Answer: Olecranon process of the ulna

      Explanation:

      At the upper and back part of the ulna, there exists a curved eminence which is the olecranon process. This process lodges in the olecranon fossa of the humerus. It’s posterior surface is subcutaneous and this triangular area is what you rest your elbow upon.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      12.7
      Seconds

  • Question 5 - Where would you insert the needle when drawing blood from a patient's median...

    Correct

    • Where would you insert the needle when drawing blood from a patient's median cubital vein?

      Your Answer: Anterior aspect of the elbow

      Explanation:

      The correct answer is to insert it into the anterior aspect of the elbow. If you look at the venous drainage of the upper limb, you will find that there are two main veins, the basilic and the cephalic vein; the connecting branch between these two veins is the median cubital vein. and this vein passes via the cubital fossa which is on the anterior aspect of the forearm.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      34
      Seconds

  • Question 6 - Regarding the extensor retinaculum of the wrist, which of these is CORRECT? ...

    Correct

    • Regarding the extensor retinaculum of the wrist, which of these is CORRECT?

      Your Answer: It prevents the tendons of the posterior compartment of the forearm from ‘bowstringing’ when the hand is extended at the wrist

      Explanation:

      This extensor retinaculum, as the name indicates, holds the tendons of the extensors against the dorsal surface of the distal radius and ulna. Therefore, the correct answer is that it prevents bowstringing of the extensor tendons with wrist extension. It forms compartments between it and its bony attachment, and these compartments guide and hold the tendons.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      43.1
      Seconds

  • Question 7 - A machine worker fractured the medial epicondyle of his right humerus resulting in...

    Incorrect

    • A machine worker fractured the medial epicondyle of his right humerus resulting in damage to an artery running with the ulnar nerve posterior to the medial epicondyle. The artery injured is the?

      Your Answer: Anterior ulnar recurrent

      Correct Answer: Superior ulnar collateral

      Explanation:

      The superior ulnar collateral artery runs posterior to the medial epicondyle of the humerus, accompanied by the ulnar nerve. This artery arises from the brachial artery near the middle of the arm and ends under the flexor carpi ulnaris muscle by anastomosing with two arteries: the posterior ulnar recurrent and inferior ulnar collateral.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      47.9
      Seconds

  • Question 8 - Two boys were playing when one of them brought the forearm of the...

    Correct

    • Two boys were playing when one of them brought the forearm of the other behind his back. This resulted in a stretching of the lateral rotator of the arm. Which of the following muscles was most likely to have been involved?

      Your Answer: Infraspinatus

      Explanation:

      There are two lateral rotators of the arm, the infraspinatus and the teres minor muscles. The infraspinatus muscle receives nerve supply from C5 and C6 via the suprascapular nerve, whilst the teres minor is supplied by C5 via the axillary nerve.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      51.9
      Seconds

  • Question 9 - Which muscle would be affected most following injury to the transverse cervical artery?...

    Incorrect

    • Which muscle would be affected most following injury to the transverse cervical artery?

      Your Answer: Supraspinatus

      Correct Answer: Trapezius

      Explanation:

      The latissimus dorsi receives blood from the thoracodorsal artery, the supraspinatus receives its blood from the suprascapular artery, the levator scapulae and the rhomboids are supplied by the dorsal scapular artery and the transverse cervical artery supplies blood to the trapezius.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      26.6
      Seconds

  • Question 10 - A ‘claw hand’ is usually associated with injury to which of the following...

    Correct

    • A ‘claw hand’ is usually associated with injury to which of the following nerves?

      Your Answer: Ulnar nerve

      Explanation:

      A ‘claw hand’ is associated with injury to the ulnar nerve at the wrist affecting the interossei, lumbricals and hypothenar muscles of the hand. It is characterized by hypothenar eminence wasting, hyperextended metacarpophalangeal joints and flexed interphalangeal joints.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      9.1
      Seconds

  • Question 11 - A chef, whilst preparing food, cut her thumb with a knife. She transected...

    Correct

    • A chef, whilst preparing food, cut her thumb with a knife. She transected the arteria princeps pollicis. This artery is a branch of the?

      Your Answer: Radial artery

      Explanation:

      The radial artery branches into the arteria princeps pollicis as it turns medially into the deep part of the hand. The arteria princeps pollicis is distributed to the skin and subcutaneous tissue of the thumb.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      23.4
      Seconds

  • Question 12 - A 54 year old man fell off his bicycle. He felt a severe...

    Incorrect

    • A 54 year old man fell off his bicycle. He felt a severe pain in his hand and wasn't able to move it. It was found that a carpal bone in the distal row was fractured. Which is the most likely bone?

      Your Answer: Lunate

      Correct Answer: Trapezium

      Explanation:

      There are eight carpal bones which are arranged in two rows, proximal and distal; scaphoid, lunate, triquetral and pisiform are of proximal row. Trapezium, trapezoid, capitate and hamate are of the distal row.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      57.4
      Seconds

  • Question 13 - A gymnast was admitted to hospital for investigation of a weakness in the...

    Incorrect

    • A gymnast was admitted to hospital for investigation of a weakness in the extension and adduction of his arm. He had a previous penetrating wound in the area of the posterior axillary fold. Which of these muscles is the likely cause?

      Your Answer: Levator scapula

      Correct Answer: Latissimus dorsi

      Explanation:

      All the criteria of this case points towards the latissimus dorsi. This muscle is greatly involved in extension, adduction and medial rotation of the arm and forms the posterior axillary fold which in this case was injured.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      55.7
      Seconds

  • Question 14 - The annular ligament in the forearm: ...

    Correct

    • The annular ligament in the forearm:

      Your Answer: Encircles the head of the radius

      Explanation:

      The annular ligament forms about four-fifths of the osseofibrous ring and is attached to the anterior and posterior margins of the radial notch. It is a strong band of fibres which encircles the head of the radius retaining it in contact with the radial notch of the ulna. When it comes to its upper border, it blends with the anterior and posterior ligament of the elbow.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      11.6
      Seconds

  • Question 15 - The following joint has an anastomotic circulation that is provided by branches of...

    Correct

    • The following joint has an anastomotic circulation that is provided by branches of the brachial artery:

      Your Answer: Elbow joint

      Explanation:

      The arterial anastomoses of the elbow joint is contributed by branches of the brachial artery and the Profunda brachii artery. The brachial artery gives off the superior ulnar collateral artery and the inferior collateral artery. On the other hand, the Profunda brachii gives off the radial and medial recurrent arteries.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      34.6
      Seconds

  • Question 16 - An X ray of a 60 year old male brought to the accident...

    Correct

    • An X ray of a 60 year old male brought to the accident and emergency following a fall down stairs shows a fractured olecranon process of the right ulna with the line of fracture passing through the superior surface, disrupting a muscle. Which among the following muscles was most likely injured?

      Your Answer: Triceps brachii

      Explanation:

      The superior surface of the olecranon process forms an attachment for the insertion of the triceps brachii on the posterior aspect. It also has a minor transverse groove for the attachment of part of the posterior ligament of the elbow on the anterior aspect.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      55.2
      Seconds

  • Question 17 - Following a lacerating injury along the anterior border of the trapezius muscle in...

    Incorrect

    • Following a lacerating injury along the anterior border of the trapezius muscle in the neck, a man has the point of his shoulder (scapula) sagging and he has difficulty with full abduction of his arm. Which nerve is most likely injured?

      Your Answer: Suprascapular

      Correct Answer: Accessory (cranial nerve XI)

      Explanation:

      Injury to the accessory nerve denervates the trapezius muscle so that the person will no longer be able to raise the acromion of the shoulder. The dorsal scapular nerve supplies the rhomboids i.e. major and minor and the levator scapulae so that injury to this nerve weakens retraction of the scapula. The greater occipital nerve is responsible for sensation of the posterior scalp. The axillary nerve innervates the deltoid muscle which is responsible for abduction of the arm and the suprascapular nerve is responsible for rotating the humerus laterally. Cutaneous nerves supply the skin.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      67.1
      Seconds

  • Question 18 - A space defined by the teres major muscle, the teres minor muscle, long...

    Correct

    • A space defined by the teres major muscle, the teres minor muscle, long head of the triceps brachii muscle and surgical neck of the humerus contains the axillary nerve and the?

      Your Answer: Posterior circumflex humeral artery

      Explanation:

      This quadrangular space transmits the posterior circumflex humeral vessels and the axillary nerve.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      31
      Seconds

  • Question 19 - Which best describes the suprascapular nerve? ...

    Correct

    • Which best describes the suprascapular nerve?

      Your Answer: It contains nerve fibres from C5 and C6 spinal cord segments

      Explanation:

      The suprascapular nerve arises from the cervical spinal nerves 5 and 6 after coming together to form common trunk. This nerve supplies the supraspinatus and infraspinatus muscles giving off branches to the shoulder joint.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      20.8
      Seconds

  • Question 20 - The muscle that depresses the glenoid fossa directly is the: ...

    Incorrect

    • The muscle that depresses the glenoid fossa directly is the:

      Your Answer: Serratus anterior

      Correct Answer: Pectoralis minor

      Explanation:

      Situated at the upper part of the thorax beneath the pectoralis major, is a thin pectoralis minor, triangular muscle. It originates from the third, fourth and fifth ribs, near the cartilage and from the aponeurosis which covers the intercostals. These fibres move upwards and laterally to join and form a flat tendon. This is inserted into the medial border and upper surface of the coracoid process of the scapula. Through this medial anterior thoracic nerve, fibres from the pectoralis minor are received from the eighth cervical and first thoracic nerves. This pectoralis minor pushes down on the point of the shoulder (glenoid fossa), drawing the scapula downward and medially towards the thorax which throws the inferior angle backwards.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      14.5
      Seconds

  • Question 21 - Which of the following muscles are involved in abduction of the wrist? ...

    Incorrect

    • Which of the following muscles are involved in abduction of the wrist?

      Your Answer: Palmaris longus and extensor digitorum

      Correct Answer: Extensor carpi radialis brevis and flexor carpi radialis

      Explanation:

      The muscle of the wrist that cause abduction of the wrist otherwise also know as radial flexion of the wrist are the following:

      -Abductor Pollicis Longus

      -Flexor Carpi Radialis

      -Extensor Carpi Radialis Longus

      -Extensor Carpi Radialis Brevis

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      35.4
      Seconds

  • Question 22 - A 50 year old male point was diagnosed with tennis elbow that became...

    Incorrect

    • A 50 year old male point was diagnosed with tennis elbow that became worse after he started playing basket ball over the last three months. He was admitted to the orthopaedic ward to have elbow braces fitted. What type of synovial joint is the elbow joint?

      Your Answer: Plane

      Correct Answer: Hinge

      Explanation:

      The elbow joint is one of the many synovial joints in the body. This joint is an example of the hinge joint as the humerus is received into the semilunar notch of the ulna and the capitulum of the humerus articulates with the fovea on the head of the radius, together acting as a hinge in one plane.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      71.7
      Seconds

  • Question 23 - A man had noticed weakness in his left arm causing flexion of the...

    Incorrect

    • A man had noticed weakness in his left arm causing flexion of the elbow and supination of the forearm. Which nerve in this case was injured?

      Your Answer: Axillary

      Correct Answer: Musculocutaneous

      Explanation:

      The musculocutaneous nerve supplies the biceps brachii and the brachialis muscles. The first one flexes the elbow and the shoulder. It is also involved in supination. The brachialis muscle flexes the forearm. The injury to the musculocutaneous nerve results in paralysis of these muscles.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      11.5
      Seconds

  • Question 24 - A man came to the hospital complaining of a sensation of pins and...

    Incorrect

    • A man came to the hospital complaining of a sensation of pins and needles in the dorsum of the thumb and digits 1 and 2. On further examination they found that he had weakness in wrist dorsiflexion and finger extension. Which nerve do you think is injured in this case?

      Your Answer: Axillary

      Correct Answer: Radial

      Explanation:

      The radial nerve can be injured in multiple sites along its course in the upper limb, and each site has its own presentation. The major complaint is wrist drop which if high above the elbow, can cause numbness of the forearm and hand. It can last for several days or weeks. The most common site of compression for the radial nerve is at the proximal forearm in the area of the supinator muscles.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      52
      Seconds

  • Question 25 - During a street fight a boy sustained a laceration below the elbow. It...

    Incorrect

    • During a street fight a boy sustained a laceration below the elbow. It was a deep cut that led to profuse bleeding from an artery situated on the supinator muscle immediately below the elbow. The vessel most likely to have been injured is?

      Your Answer: Anterior ulnar recurrent artery

      Correct Answer: Radial recurrent artery

      Explanation:

      The radial recurrent artery is situated on the supinator muscle then passing between the brachialis and the brachioradialis muscles. It originates from the radial artery and ends by anastomosing with the terminal part of the Profunda brachii.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      44.6
      Seconds

  • Question 26 - A drug abuser developed an infection which spread from the dorsum of the...

    Incorrect

    • A drug abuser developed an infection which spread from the dorsum of the hand to the medial side of the arm along the course of the large cutaneous vein. Which vein is involved?

      Your Answer: Brachial

      Correct Answer: Basilic

      Explanation:

      The basilic vein is one of two veins found in the forearm, the other is the cephalic vein. These veins originate from the deep venous arch of the hand. The cephalic vein ascends along the lateral side of the forearm, and the basilic vein runs up the medial side of the forearm.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      62
      Seconds

  • Question 27 - A young man came to the emergency room after an accident. The anterior...

    Correct

    • A young man came to the emergency room after an accident. The anterior surface of his wrist was lacerated with loss of sensation over the thumb side of his palm. Which nerves have been damaged?

      Your Answer: Median

      Explanation:

      The median nerve provides cutaneous innervation to the skin of the palmar radial three and a half fingers. Also the site of injury indicates that the medial nerve may have been injured as it passes into the hand by crossing over the anterior wrist.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      71.2
      Seconds

  • Question 28 - A man had an injury to his right brachial plexus. After examination by...

    Incorrect

    • A man had an injury to his right brachial plexus. After examination by the doctor they found that the diaphragm and the scapula were unaffected however the patient could not abduct his arm. When helped with abducting his arm to 45 degrees he was able to continue the movement. This means that he was unable to initiate abduction. Where is the likely site of injury?

      Your Answer: Posterior cord

      Correct Answer: Suprascapular nerve

      Explanation:

      The loss of ability to initiate abduction means paralysis of the supraspinatus muscle. This muscle is supplied by the supraclavicular nerve.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      28.9
      Seconds

  • Question 29 - A young girl injured her arm following a fall down the steps On...

    Correct

    • A young girl injured her arm following a fall down the steps On examination, it was found that her left proximal radioulnar joint had dislocated and the annular ligament was stretched. This will make which movement extremely painful?

      Your Answer: Supination

      Explanation:

      Supination is the rotation of the forearm so that the palm of the hand faces anteriorly. This is performed by the biceps brachii and supinator of the extensor muscles of the thumb. The opposite action of moving the palm from an anterior-facing position to a posterior-facing position is called pronation. Pronation is performed by the pronator teres and pronator quadratus.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      21.5
      Seconds

  • Question 30 - After severe injury of the upper limb following an accident. The humerus is...

    Incorrect

    • After severe injury of the upper limb following an accident. The humerus is injured as well as the nerve which innervates the muscles of the anterior compartment of the arm. Which nerve is injured?

      Your Answer:

      Correct Answer: Musculocutaneous

      Explanation:

      The musculoskeletal nerve supplies the muscles of the anterior compartment of the arm including the coracobrachialis, biceps brachii and the greater part of the brachialis. This nerve derives its fibres from the fifth, sixth and seventh cervical nerves and arises from the lateral cord of the brachial plexus. It also provides a branch to the elbow joint.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      0
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Anatomy (18/29) 62%
Upper Limb (18/29) 62%
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