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my flow > anatomy 19.04 upper limb mock test > Flashcards

anatomy 19.04 upper limb mock test Flashcards

1
Q

What sort of a synovial joint is the elbow?

Bicondylar

Plane

Hinge

Ellipsoid

Ball and socket

A

Hinge

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2
Q

Which of the distal row of carpal bones is most likely to be fractured?

Scaphoid

Pisiform

Trapezium

Lunate

Triquetral

A

Trapezium is the only one from a distal row here

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3
Q 
A man cannot extend his arm and forearm and has loss of sensation on the posterior aspect of the upper limb extending down to the dorsum of the hand. Which of the following is the most likely nerve injury?
Lateral cord
Axillary nerve
Radial nerve
Medial cord
Posterior cord
A

Radial nerve compression. It gives sensory supply to dorsal aspect of the hand, thumb, index and middle fingers and the lateral side of ring finger except the nail beds (they are supplied by proper digital branches of median)

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4
Q 
Fall on the forearm. Numbness over the 1st dorsal web space of the hand.
Posterior interosseus
Palmar branch of median
Superficial ulnar nerve
AIN
Radial
A

Radial

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5
Q

Contents of quadrangular space: axillary nerve + ?

Post. circumflex humeral artery

Radial nerve

Circumflex scapular artery

Deep artery of the arm

Thoracodorsal nerve

A

Posterior circumflex humeral artery

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6
Q

Injury to posterior cords of the brachial plexus. From which level of the spinal it contains nerve fibres?

C5 C6 C7

C5

C7,8, T1
C8, T1
C5,6,7,8, T1

A

C5,6,7,8,T1

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7
Q

Which muscles depress glenoid fossa directly?
Pectoralis minor

Serratus anterior

Supraspinatus

Pectoral major

Latissimus dorsi

A

Pectoralis minor

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8
Q

Scaphoid bone receives its blood supply from which of the following ends?

None of the below

Distal end

Lateral end

Medial end

Proximal pole

A

Distal end. So AVN is more prone at proximal site

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9
Q

Loss of action of the muscle inserting to the crest of the lesser tubercle of the humerus?

Median nerve

Axillary nerve

Lower subscapular

Long thoracic

Radial

A

Subscapularis muscle -> lower subscapular nerve

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10
Q

Supracondylar humeral fracture. WHich nerve is at the greatest risk?

Median

Deep branch ulnar

PIN

Ulnar

AIN

A

AIN.

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11
Q

Spinal cord injury at C8. What is likely to be seen?

Unable to flex humerus

Brachialis muscle will be paralysed

Innervation to the deltoid will be affected

Radial nerve muscles (most proximal ones) would be affected

Hypothenar muscles would be completely paralysed

A

Hypothenar muscles would be completely paralysed. C8 - ulnar nerve.

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12
Q

Which muscle forms posterior wall of the axilla along with scapula, subscapularis muscle, teres major?

pectoralis major

Latissimus dorsi

Trapezius

Serratus anterior

Supraspinatus

A

Latissimus dorsi

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13
Q

Relation of extensor indicis to extensor digitorum in index finger?

Lateral

Posterior

Anterior

Medial

A

Medial

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14
Q

Which muscles originate from the common flexor tendon?

A 
Flexor carpi ulnaris
Palmaris longus
Flexor carpi radialis
Pronator teres
Flexor digitorum superficialis
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15
Q

Which nerve may be injured during a surgery for Dupuytren’s contracture of ring finger lateral to long flexor tendons at level of MCP joints?

Recurrent branch of median

Dorsal branch of ulnar

Deep branch of ulnar

Superficial branch of ulnar

Digital branch of median

A

Digital branch of median

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16
Q

Laceration of the anterior aspect of the hand. Thenar muscle atrophy with lost opposition. Which nerve is involved?

Recurrent branch of median nerve

PIN

Deep ulnar nerve

AIN

Superficial ulnar nerve

A

Recurrent branch of median nerve

17
Q

Weakness of intrinsic hand muscles with loss of sensation over the inner aspect of the arm. Cause?

Ulnar at wrist

Ulnar at elbow

Lower trunk of brachial plexus

Radial

Superior sulcus tumour

A

Lower trunk injury - Klumpke’s palsy
Median + ulnar nerve
Sensory of C8 T1 - medial one and medial forearm and medial lower arm T1

18
Q

Unable to lift thumb off the table with the palm facing upwards. Which nerve is impaired?

Radial

Median

PIN

AIN

A

PIN. Weakness of extensor muscles, wrist and finger drop

19
Q

Which axillary nodes are medial to the pectoralis minor?

Apical

Lateral

Pectoral

Central

Subscapular

A

Apical

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