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  • Question 1 - 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: Posterior 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
      20.9
      Seconds

  • Question 2 - The rotator cuff surrounds the shoulder joint and consists of the supraspinatus, infraspinatus,...

    Incorrect

    • The rotator cuff surrounds the shoulder joint and consists of the supraspinatus, infraspinatus, subscapularis and which one other muscle?

      Your Answer:

      Correct Answer: Teres minor

      Explanation:

      The correct answer is the teres minor muscle. These group of muscles play an important role in protecting the shoulder joint and keeping the head of the humerus in the glenoid fossa of the scapula. This fossa is somehow shallow and needs support to allow for the full mobility that the shoulder joint has.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      0
      Seconds

  • Question 3 - 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:

      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
      0
      Seconds

  • Question 4 - Which best describes the suprascapular nerve? ...

    Incorrect

    • Which best describes the suprascapular nerve?

      Your Answer:

      Correct 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
      0
      Seconds

  • Question 5 - Which muscle originates from the common flexor tendon of the forearm? ...

    Incorrect

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

      Your Answer:

      Correct 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
      0
      Seconds

  • Question 6 - During a radical mastectomy for advanced breast cancer, the surgeon injured the long...

    Incorrect

    • During a radical mastectomy for advanced breast cancer, the surgeon injured the long thoracic nerve. Which among the following muscles is likely to be affected?

      Your Answer:

      Correct Answer: Serratus anterior

      Explanation:

      The long thoracic nerve innervates the serratus anterior muscle which holds the scapula forward and balances the rhomboids and the trapezius muscles which retract the scapula. Injury to this nerve results in a ‘winged scapula’ with a posterior protrusion.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      0
      Seconds

  • Question 7 - The Carpal tunnel does NOT contain: ...

    Incorrect

    • The Carpal tunnel does NOT contain:

      Your Answer:

      Correct Answer: Flexor carpi ulnaris

      Explanation:

      The contents of the carpal tunnel include:

      – Median nerve

      – Flexor digitorum supervicialis

      – Flexor digitorum profundus

      – Flexor policis longus

      – Flexor carpi radialis

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      0
      Seconds

  • Question 8 - 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

  • Question 9 - The muscle which has an antagonistic action to the serratus anterior muscle and...

    Incorrect

    • The muscle which has an antagonistic action to the serratus anterior muscle and is one of the retractors of the scapula is the?

      Your Answer:

      Correct Answer: Rhomboid major

      Explanation:

      Protraction is accomplished by the actions of the serratus anterior, pectoralis major, and pectoralis minor muscles. Retraction is accomplished by the actions of the trapezius, rhomboids, and latissimus dorsi muscles.

      The rhomboid major arises from the second, third, fourth and fifth thoracic vertebrae. It is inserted into a narrow tendinous arch attached to the root of the spine of the scapula and the inferior angle. By its insertion in the inferior angle of the scapula, it acts on this angle and produces a slight rotation of the scapula on the side of the chest. It also retracts the scapula by working with the trapezius muscle.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      0
      Seconds

  • Question 10 - A young girl injured her arm following a fall down the steps On...

    Incorrect

    • 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:

      Correct 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
      0
      Seconds

  • Question 11 - A ‘claw hand’ is usually associated with injury to which of the following...

    Incorrect

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

      Your Answer:

      Correct 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
      0
      Seconds

  • Question 12 - A chef, whilst preparing food, cut her thumb with a knife. She transected...

    Incorrect

    • 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:

      Correct 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
      0
      Seconds

  • Question 13 - 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:

      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
      0
      Seconds

  • Question 14 - Regarding the extensor retinaculum of the wrist, which of these is CORRECT? ...

    Incorrect

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

      Your Answer:

      Correct 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
      0
      Seconds

  • Question 15 - Two boys were playing when one of them brought the forearm of the...

    Incorrect

    • 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:

      Correct 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
      0
      Seconds

  • Question 16 - Which Statement is true of the brachial plexus? ...

    Incorrect

    • Which Statement is true of the brachial plexus?

      Your Answer:

      Correct Answer: The posterior cord continues as the axillary nerve

      Explanation:

      The lateral cord continues as the musculocutaeous nerve.

      The medial cord continues as the ulnar nerve.

      The posterior cord continues as the radial nerve and the axillary nerve.

      The nerve to subclavius muscle is a branch of the C6 root.

      The suprascapular nerve is a branch from the upper trunk.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      0
      Seconds

  • Question 17 - When you rest your elbows on a desk, what bony landmark of the...

    Incorrect

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

      Your Answer:

      Correct 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
      0
      Seconds

  • Question 18 - An old man fell and fractured a carpal bone articulating with the pisiform...

    Incorrect

    • An old man fell and fractured a carpal bone articulating with the pisiform bone. Which bone was most likely fractured?

      Your Answer:

      Correct Answer: Triquetral

      Explanation:

      The pisiform bone has an oval facet for articulation with the triquetral bone. The pisiform bone is a sesamoid bone, and is anterior to the other carpal bones.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      0
      Seconds

  • Question 19 - 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:

      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
      0
      Seconds

  • Question 20 - A mechanic sustained a deep laceration to his right cubital fossa which resulted...

    Incorrect

    • A mechanic sustained a deep laceration to his right cubital fossa which resulted in him unable to move the proximal radioulnar joint of his right arm. Which muscles was affected?

      Your Answer:

      Correct Answer: Pronator teres

      Explanation:

      The correct answer is the pronator teres muscle. This muscle arises from 2 heads of origin: the humerus and ulnar. Between the 2 heads is the site of entrance of median nerve to the forearm. This muscle acts on the proximal radio-ulnar joint to rotate the radius on the ulna, otherwise known as pronation. It also assists in forearm flexion if the radius is fixed.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      0
      Seconds

  • Question 21 - A swimmer was struggling to finish his training following an injury to his...

    Incorrect

    • A swimmer was struggling to finish his training following an injury to his right arm. On further examination it was found that any movements involving adduction, medial rotation and extension of her arm were particularly weak. Which nerve in this case was damaged?

      Your Answer:

      Correct Answer: Thoracodorsal

      Explanation:

      Weakness on these particular movements indicate that there is a problem with the latissimus dorsi muscle. This muscle is very important particularly in swimming movements and is supplied by the thoracodorsal nerve.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      0
      Seconds

  • Question 22 - An X ray of a 60 year old male brought to the accident...

    Incorrect

    • 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:

      Correct 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
      0
      Seconds

  • Question 23 - 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:

      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
      0
      Seconds

  • Question 24 - A young man in a motor vehicle accident sustained a spinal injury at...

    Incorrect

    • A young man in a motor vehicle accident sustained a spinal injury at C8 level. What would likely be seen in this patient?

      Your Answer:

      Correct Answer: The hypothenar muscles would be completely paralysed

      Explanation:

      The eighth cervical nerve is one of the contributors of the ulnar nerve. The ulnar nerve supplies the hypothenar muscles which include the opponens digiti minimi, abductor digiti minimi, flexor digiti minimi brevis, and palmaris brevis.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      0
      Seconds

  • Question 25 - On exploration of an axillary wound, a branch from the third part of...

    Incorrect

    • On exploration of an axillary wound, a branch from the third part of the axillary artery was found to be transected. Which of the following arteries would have been likely injured?

      Your Answer:

      Correct Answer: Anterior circumflex humeral

      Explanation:

      The axillary artery gives off many branches from the first, second, or third parts along its course. The third part of the axillary artery gives off 3 branches: the subscapular, anterior and posterior circumflex humeral arteries.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      0
      Seconds

  • Question 26 - A young man came to the emergency room after an accident. The anterior...

    Incorrect

    • 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:

      Correct 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
      0
      Seconds

  • Question 27 - A young boy fell from a tree, sustaining an injury to the elbow...

    Incorrect

    • A young boy fell from a tree, sustaining an injury to the elbow area and damaging the nerve behind the medial epicondyle of the humerus. What is the most likely result from that injury?

      Your Answer:

      Correct Answer: Flexion in the distal interphalangeal joint of digit 5

      Explanation:

      The nerve injured in this situation is the ulnar nerve. It passes posterior to the medial epicondyle of the humerus before going between the two heads of the flexor carpi ulnaris muscle. This nerve supplies the muscles and skin of forearm and hand. At the level of medial epicondyle, the injury will led to paralysis in flexor carpi ulnaris and the ulnar half of the flexor digitorum profundus as well as the palmar interossei and hypothenar muscles in the hand. The correct answer will be that the boy will suffer from inability to flex the distal interphalangeal joint of digit 5

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      0
      Seconds

  • Question 28 - Which of these nerves controls adduction of hand? ...

    Incorrect

    • Which of these nerves controls adduction of hand?

      Your Answer:

      Correct Answer: Ulnar nerve

      Explanation:

      The adductors of the fingers are the palmer interossei. They are supplied by the ulnar nerve, which is a branch of the medical cord of the brachial plexus.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      0
      Seconds

  • Question 29 - An old man was diagnosed with squamous cell carcinoma with axillary lymph node...

    Incorrect

    • An old man was diagnosed with squamous cell carcinoma with axillary lymph node metastasis. The doctor said he will excise the tumour and remove all axillary lymph nodes lateral to the edge of the pectoralis minor muscle. One of the following axillary lymph nodes won't be removed by this procedure. Which is it?

      Your Answer:

      Correct Answer: Apical

      Explanation:

      The apical lymph node group won’t be removed which include 20 to 30 lymph nodes.

      Axillary lymph nodes are grouped according to location. The lateral group, the anterior to pectoral group, the posterior or subscapular group, the central group, and the medial or apical group. The lateral, pectoral, and subscapular groups are found lateral to the pectoralis minor muscle. The central group is situated directly under that muscle. Thus, if all lymph nodes lateral to the medial edge of the pectoralis minor muscle are removed, all the above four groups will be removed. The apical group won’t be removed which is situated medial to the medial edge of the pectoralis minor muscle.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      0
      Seconds

  • Question 30 - What is the nerve supply of the muscle that is inserted onto the...

    Incorrect

    • What is the nerve supply of the muscle that is inserted onto the crest of the lesser tubercle of the humerus?

      Your Answer:

      Correct Answer: Lower subscapular

      Explanation:

      The muscle is the subscapularis muscle which is supplied by the lower subscapular nerve.

    • This question is part of the following fields:

      • Anatomy
      • Upper Limb
      0
      Seconds

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Upper Limb (0/1) 0%
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