True & False Questions in Upper limb.pdf

MCQs on Upper limb anatomy

1. Upper Limb - 1 of 9
The scapula:
1winging' of the scapula is produced by lesion of the long thoracic
nerve
T
2rotates around the point of attachment of the acromion to the clavicleT
3has a supraglenoid tubercle for the attachment of the long head of the
triceps
FThe scapula has an infragleniod tubercle for the attachment of the long
head of the triceps
4has a costal surface for the attachment of the subscapularis and
serratus anterior muscles
T
5has a notch on its superior border through which the subscapular
nerve runs
FThe notch on the superior border of the scapula allows passage of the
suprascapular nerve
6has a groove on its lateral border for the circumflex scapular artery T
7the inferior angle of the scapula corresponds to the spinous process of
the T7 vertebra
T
8the scapular anastomosis links the 3rd part of the subclavia with the
2nd part of the axillary artery
FThe scapular anastomosis links the 1st part os the subclavian artery
with the 3rd part of the axillary artery
9the scapular anastomosis provides a route of collateral circulation
between the 1st and 3rd parts of the axillary artery
FThe scapular anastomosis provides a route of collateral circulation
between the subclavian artery and the 3rd part of the axillary artery
The humerus:
1its growing end is the upper end T
The ulna:
1its posterior border is subcutaneous T
2the head of the ulna articulates with the lunate FThe head of the radius articulates with the lunate.
3the annular ligament of the ulnar is attached to the margins of the
radial notch
T
4its distal end is the growing end T
5provides attachment for the deep part of the supinator T
The acromio-clavicular joint:
1allows for gliding movements T
The shoulder joint:
1The capsule of the joint is attached to the surgical neck of the
humerus
FThe capsule of the shoulder joint is attached to the anatomical neck of
the humerus

2. Upper Limb - 2 of 9
2the short head of the biceps brachii tendon lies inside the bicipital
groove
FThe long head of the biceps brachii lies within the bicipital groove
3the weakest part of the capsule is inferiorly T
4the subscapularis is a medial rotator of the joint T
5the suprascapular nerve innervates the joint T
The elbow joint:
1the musculocutaneous nerve supplies this joint T
2the trochlea of humerus articulates with the head of radius FIn the elbow joint, the trochlea of humerus articulates with the trochlea
notch of the ulna
3derives its innervation from the axillary nerve FThe shoulder joint derives its innervation from the axillary nerve
4the bicipital aponeurosis forms the anterior part of the capsule of the
joint
FThe bicipital aponeurosis forms the roof of the cubital fossa
5is an example of a hinge joint T
6blood supply to the joint is by branches of the radial and ulnar arteriesT
7spinal segments for extension of the joint are C7 and C8 T
8biceps brachii serves to flex and supinate the forearm at the elbow
joint
FBiceps brachii serves to flex the forearm at the elbow joint (supination
takes place at the radioulnar joints)
9pronation and supination of the forearm occur at the elbow and wrist
joints
FPronation and supination of the forearm occur at the superior and
inferior radioulnar joints
The superior radioulnar joint:
1is a pivot joint T
2the annular ligament of the joint forms a collar around the head of the
radius
T
3the articulation is between the head of the radius and the radial notch
of the ulnar
T
4is supplied by the radial nerve T
5the synovial cavity of the joint communicates with that of the elbow
joint
T
The wrist joint:
1adduction at this joint is performed by the flexor and extensor carpi
radialis
FAbduction at the wrist joint is performed by the flexor and extensor
carpi radialis
2is involved in pronation of the forearm FOnly the superior radioulnar joint is involved in pronation of the forearm

3. Upper Limb - 3 of 9
The metacarpophalangeal joint:
1are between the bases of the metacarpal bones and the heads of the
proximal phalanges
FThe metacarpophalangeal joint are between the heads of the
metacarpal bones and the bases of the proximal phalanges
The interphalangeal joints:
1the dorsal interossei assist in extension at these joints T
The brachial plexus:
1the upper trunk in a prefixed brachial plexus is formed by the union of
C5 and C6 nerves
T(+C4)
2the lower trunk of the brachial plexus crosses inferior to the first rib FThe lower trunk of the brachial plexus crosses superior to the first rib
3the thoracodorsal nerve (nerve to latissimus dorsi) arises from thr
medial cord of the brachial plexus
FThe thoracodorsal nerve (nerve to latissimus dorsi) arises from the
posterior cord of the brachial plexus
4only has motor and sympathetic components FThe brachial plexus has motor, sympathetic and sensory components
5dorsal (posterior) division of the brachial plexus supplies extensor
muscles
T
6is formed by the anterior primary rami of C5, C6, C7, C8 and T1 T
7the three trunks of the brachial plexus are found in the neck T
8the three cords of the brachial plexus are found in the neck FThe three cords of the brachial plexus are found in the axilla
9the posterior cord receives contributions from all 5 spinal nerves T
The axillary nerve:
1supplies the deltoid muscle T
2arises as a terminal branch of the posterior cord of the brachial plexusT
3sends out an articular twig to the capsule of the shoulder joint T
4is related to the surgical neck of the humerus T
5gives rise to the lower lateral cutaneous nerve of the arm FThe radial nerve gives rise to the lower lateral cutaneous nerve of the
arm
6is closely related to the shoulder joint T
7is accompanied by the profunda brachii artery FThe radial nerve is accompanied by the profunda brachii artery
8is a pure motor nerve FThe axillary nerve has motor, sensory and sympathetic nerve fibres
9pierces the coracobrachialis muscle FThe musculocutaneous nerve pierces the coracobrachialis muscle

4. Upper Limb - 4 of 9
The median nerve
1a lesion at the wrist produces 'wrist drop' FA lesion of the radial nerve at the wrist produces 'wrist drop'
2passes between the two heads of the pronator teres T
3runs superficial to the flexor retinaculum FThe median nerve runs deep to the flexor retinaculum
4lies between the tendons of the flexor carpi radialis and palmaris
longus
T
5supplies all the thenar muscles T
6arises from the medial and lateral cords of the brachial plexus T
The radial nerve:
1divides into its superficial and deep branches in the cubital fossa T
2is liable to injury in fractures of the middle of the shaft of the humerus T
3supplies the brachioradialis and the extensor carpi radialis longusin
the arm
T
4gives rise to the posterior cutaneous nerve of the arm in the axilla T
5arises from the posterior cord of the brachial plexus T
6passes backwards through the quadrilateral (quadrangular) space FThe axillary nerve passes backwards through the quadrilateral
(quadrangular) space
The ulnar nerve:
1the higher the lesion of the ulnar nerve, the greater the degree of
clawing of the little and ring fingers
FThe higher the lesion, the lessor the degree of clawing of the ring and
little fingers, due to loss of function of flexor digitorium profundus
muscles (ulnar paradox)
2is accompanied by the inferior ulnar collateral artery in the lower part
of the arm
FThe ulnar nerve is accompanied by the superior ulnar collateral artery
in the lower part of the arm
The axillary artery:
1gives rise to the superior intercostal artery FThe costocervical trunk of the subclavian artery gives rise to the
superior intercostal artery
2lies anterior to the posterior cord of the brachial plexus in its second
part
T
3its 2nd part runs anterior to the pectoralis minor FThe 2nd part of the axillary artery runs posterior to the pectoralis minor
4ends at the lower border of the teres major T
5is enclosed in the axillary sheath T
6starts at the medial border of the first rib FThe axillary artery starts at the lateral border of the first rib

5. Upper Limb - 5 of 9
7is the continuation of the subclavian artery T
8lies anterior to the radial nerve T
9the first part of the axillary artery gives rise to the subscapular arteryF
10is in close association with the trunks of the brachial plexus FThe axillary artery is in close association with the cords of the brachial
plexus
The radial artery:
1anastomoses with the deep branch of the ulnar artery to form the deep
plamar arch
T
2the radial pulse can be felt in the anatomical snuffbox T
3is crossed by the median nerve at the wrist FThe radial aretery is not crossed by the median nerve at the wrist.
4begins in the cubital fossa T
5pulsations can be felt against the distal end of the radius T
6enters the palm between the 2 heads of the first dorsal interosseous
muscle
T
The ulnar artery:
1enters the forearm between the 2 heads of the flexor carpi ulnaris FThe ulnar nerve enters the forearm between the two heads of the flexor
carpi ulnaris
2gives nutrient branches to both the radiums and ulna FThe anterior interosseous artery gives nutrient branches to both the
radius and ulna
3sends a branch to supply muscles on the back of the forearm T
4passes deep to the flexor retinaculum to enter the palm FThe ulnar artery passes superficial to te flexor retinaculum to enter the
palm
5does not take part in formation of the deep palmar arch FThe deep branch of ulnar artery takes part in the formation of the deep
palmar arch
Arterial arches:
1the deep palmar arch is formed mainly by the deep branch of the ulnar
artery
FThe deep palmar arch is formed mainly by the radial artery
2the superficial palmar arch is the main continuation of the radial arteryFThe superficial palmar arch is the main continuation of the ulnar artery.
3perforating branches connect the deep palmar arch to the dorsal
metacarpal arteries
T
4the superficial palmar arch gives rise to the radialis indicis artery FThe deep palmar arch gives rise to the radialis indicis artery.

6. Upper Limb - 6 of 9
The basilic vein:
1communicates with the cephalic vein T
Deltoid muscle:
1is entirely a multipennate muscle FThe deltoid is a multipennate muscle, but not entirely
2forms the lateral wall of the axilla FThe bicipital groove forms the lateral wall of the axilla
3inserts into the humerous distal to the radial (spiral) groove FThe deltoid insterts into the humerous at the same level/proximal to the
radial (spiral) groove
4is an abductor of the shoulder joint T
5is supplied by the axillary nerve T
6is a multipennate muscle T
Teres major muscle:
1is supplied by the suprascapular nerve FTeres major is supplied by the lower subscapular nerve
2is supplied by the upper subscapular nerve FTeres major is supplied by the lower subscapular nerve
Biceps brachii muscle:
1flexes both shoulder and elbow joints T
2supinates the forearm T
3the short head arises from the supraglenoid tubercle FThe long head arises from the supraglenoid tubercle
4the tendon of the long head is partially enclosed in synovial membraneT
5is supplied by the median nerve FThe biceps brachii is supplied by the musculocutaneous nerve
6can produce flexion at the shoulder joint T
Brachialis muscle:
1is supplied by the musculocutaneous nerve and radial nerve T
Anconeus muscle:
1is supplied by the posterior interosseous nerve FAnconeus is supplied by the radial nerve
2is supplied by the ulnar nerve FAnconeus is supplied by the radial nerve
Supinator muscle:
1is supplied by the superficial radial nerve FThe supinator is supplied by the deep radial nerve
Lumbricals:

7. Upper Limb - 7 of 9
1act to adduct the fingers at the metacarpophalangeal joint FThe palmar interossei act to adduct the fingers at the
metacarpophalangeal joint
2are attached to the tendons of the flexor digitorium superficialis FLumbricals are attached to the tendons of the flexor digitorium
profundus
3are inserted into the extensor expansions T
4arise from the medial side of the tendons of the flexor digitorium
profundus
FLumbricals arise from the lateral side of the tendons of the flexor
digitorium profundus
Interossei:
1palmar interossei adduct the fingers T
2dorsal interossei flex the interphalangeal joints FDorsal interossei extend the interphalangeal joints.
The axilla:
1The horizonal fibres of the trapezius pulls the medial border of the
scapula downwards
FThe horizontal fibres of the trapezius pulls the medial border of the
scapula towrds the midline.
2the thoracodorsal nerve supplies the serratus anterior FThe serratus anterior is supplied by the long thoracic nerve
3the latissimus dorsi forms the anterior wall of the axilla FThe anterior wall of the axilla is formed by the pectoralis major muscles
The cubital fossa:
1the bicipital aponeurosis separates the median cubital vein from the
brachial artery here
T
2the median nerve lies lateral to the biceps tendon here FThe median nerve lies medial to the biceps tendon at the cubital fossa
3the brachial artery bifurcates here T
4the floor of the cubital fossa is formed by the brachialis and supinator
mucles
T
5The radial nerve lies medial to the brachial artery here FThe median nerve lies medial to the brachial artery at the cubital fossa
The carpal tunnel:
1contains the tendons of the flexor digitorium superficialis T
2contains a portion of the ulnar bursa T
3compression of the median nerve in the tunnel causes a sensory loss
over palmar surface of the index finger
T
4is a fibro-osseous tunnel formed by the carpal bones and the palmar
aponeurosis
FThe carpal tunnel is a fibro-osseous tunnel formed by the carpal bones
and the flexor retinaculum
5contains both the radial and ulnar arteries FThe carpal tunnel does not contain any arteries

8. Upper Limb - 8 of 9
6the carpal tunnel syndrome results in wasting of the hypothenar
muscles
FThe carpal tunnel syndrome results in weakness of the thenar muscles
and 'pins-and-needles' sensation
The anatomical snuffbox:
1the triquetral can be felt within FThe scaphoid and trapezium can be felt within the anatomical snuffbox
2superficial radial nerve crosses the anatomical snuffbox T
3is bounded by the tendons of the extensor pollicis longus and brevis
and abductor pollicis longus
T
4the scaphoid bone is palpable within T
5the radial artery passes through the anatomical snuffbox to reach the
palm
FThe radial artery passes under the tendons which border the
anatomical snuffbox to reach the palm
6the floor is formed by the 1st dorsal interosseous muscles FThe scaphoid and trapezium form the floor of the anatomical snuffbox
7the trapezium is palpable within T
Pronation of the forearm:
1pronator teres is the only pronator of the forearm FPronator quadratus is also involved in pronation
2the spinal cord controlling this action is C8 T
3the distal end of the radius rotates medially during this action T
4the axis of pronation of the forearm passes from the olecranon
process to the styloid process of the ulna
FThe axis of pronation of the forearm passes from the head of the radius
to the styloid process of the ulnar (to apex of the triangular articular
disc)
The mammary gland:
1lymphatics communicate across the midline T
2has some lyphatics which drain into lymph nodes of the opposite sideT
3lies in the superficial fasia T
4is divided into fibrous septa T
5has its base extending from the 2nd to 6th rib T
6has a tail which pierces the deep fascia to reach the axillary vessels T
The forearm:
1The flexor digitorium superficialis is innervated by both the ulnar and
median nerve
FThe flexor digitorium superficialis is innervated by the median nerve

9. Upper Limb - 9 of 9
2there is complete loss of supination when the radial nerve is lesionedFThe biceps brachii can still assist in supination if the radial nerve
supplying the supinator muscle is lesioned
3lesion of the ulnar nerve at the forearm results in the disability to
extend the interphalangeal joints of the ulnar 2 digits
T
4lesion of the radial nerve causes a complete loss of abduction of the
thumb
FAbduction of the thumb can still be carried out by the abductor pollicis
brevis, supplied by the median nerve.
The hand:
1its intrinsic mucles are derived from T1 T
2all the interossei are supplied by the median nerve FAll the interossei are supplied by the ulnar nerve.