Exam Questions Forearm Superficial Flexors

Questions Forearm Superficial Flexors

The following muscles are superficial flexors of the forearm1 Flexor digitorum profundus

2 Flexor pollicis longus

3 Flexor carpi radialis

4 Pronator quadratus

5 Palmaris Longus

The following muscles are superficial flexors of the forearm1 Flexor digitorum profundus F

2 Flexor pollicis longus F

3 Flexor carpi radialis T

4 Pronator quadratus F

5 Palmaris Longus T

Flexor digitorum profundus, flexor pollicis longus and pronator quadratus are the deep flexors of the forearm

The following muscles are superficial flexors of the forearm1 Flexor carpi ulnaris

2 Flexor pollicis brevis

3 Abductor pollicis longus


5 Pronator teres

The following muscles are superficial flexors of the forearm1 Flexor carpi ulnaris T

2 Flexor pollicis brevis F

3 Abductor pollicis longus F


5 Pronator teres T

Flexor pollicis brevis and abductor pollicis longus are thenar muscles found in the hand.

This muscle is1 Flexor carpi ulnaris

2 Flexor pollicis brevis



5 Pronator teres

This muscle is1 Flexor carpi ulnaris F

2 Flexor pollicis brevis F


4 Flexor carpi radialis F

5 Pronator teres T

This muscle is1 Palmaris longus

2 Flexor digitorum superficialis



5 Pronator teres

This muscle is1 Palmaris longus T

2 Flexor digitorum superficialis F



5 Pronator teres F





5 Pronator teres

This muscle is1 Palmaris longus F




5 Pronator teres F





5 Pronator teres


2 Flexor digitorum superficialis T



5 Pronator teres F



3 Flexor carpi ulnaris


5 Pronator teres



3 Flexor carpi ulnaris T


5 Pronator teres F

Flexor Digitorum Superficialis1 Attaches to the middle phalanges of digits 2-5

2 Attaches to the distal phalanges of digits 2-5

3 Is supplied by the median and ulnar nerves

4 Is supplied solely by the median nerve

5 Is supplied solely by the ulnar nerve

Flexor Digitorum Superficialis1 Attaches to the middle phalanges of digits 2-5 T

2 Attaches to the distal phalanges of digits 2-5 F

3 Is supplied by the median and ulnar nerves F

4 Is supplied solely by the median nerve T

5 Is supplied solely by the ulnar nerve F

Each tendon of Flexor Digitorum Superficialis splits into 2 slips which insert onto the base of the middle phalanx of its digit.FDS is supplied solely by the median nerve.

Flexor Digitorum Superficialis1 Originates from the radius only

2 Originates from the ulna only

3 Originates from the humerus only

4 Originates from the radius, ulna and humerus

5 Originates from the ulna and humerus only

Flexor Digitorum Superficialis1 Originates from the radius only F

2 Originates from the ulna only F

3 Originates from the humerus only F

4 Originates from the radius, ulna and humerus T

5 Originates from the ulna and humerus only F

Flexor Digitorum Superficialis originates from three sites;1.Humeral head from the medial epicondyle of humerus and ulnar collateral ligament2.Ulnar head from the coronoid process of the ulna3.Radial head from the superior half of anterior border of radius

Flexor Digitorum Superficialis1 Flexes the proximal interphalangeal joints

2 Flexes the distal interphalangeal joints

3 Flexes the metacarpophalangeal joints

4 Extends the proximal interphalangeal joints

5 Extends the distal interphalangeal joints

Flexor Digitorum Superficialis1 Flexes the proximal interphalangeal joints T

2 Flexes the distal interphalangeal joints F

3 Flexes the metacarpophalangeal joints T

4 Extends the proximal interphalangeal joints F

5 Extends the distal interphalangeal joints F

Flexor Digitorum Superficialis flexes the proximal interphalangeal joints and the metacarpophalangeal joints

Flexor Carpi Ulnaris1 Originates from the radius only




5 Originates from the ulna and humerus

Flexor Carpi Ulnaris1 Originates from the radius only F



4 Originates from the radius, ulna and humerus F

5 Originates from the ulna and humerus T

Flexor Carpi Ulnaris originates from two heads;1.Humeral head from the medial epicondyle of humerus2.Ulnar head from the olecranon and posterior border of the ulna

Flexor Carpi Ulnaris attaches to the1 Pisiform

2 Capitate

3 Hamate

4 4th metacarpal

5 5th metacarpal

Flexor Carpi Ulnaris attaches to the1 Pisiform T

2 Capitate F

3 Hamate T

4 4th metacarpal F

5 5th metacarpal T

Flexor Carpi Ulnaris inserts onto - Pisiform - hook of Hamate - 5th metacarpal

Flexor Carpi Ulnaris 1 Is supplied solely by the radial nerve

2 Is supplied by the radial and ulnar nerves




Flexor Carpi Ulnaris 1 Is supplied solely by the radial nerve F

2 Is supplied by the radial and ulnar nerves F


4 Is supplied solely by the median nerve F

5 Is supplied solely by the ulnar nerve T

Flexor Carpi Ulnaris is supplied solely by the ulnar nerve

Palmaris Longus1 Originates from the radius only

2 Originates from the ulna




Palmaris Longus1 Originates from the radius only F

2 Originates from the ulna F

3 Originates from the humerus only T



Palmaris longus originates from the common flexor origin on the medial epicondyle of the humerus

Flexor Carpi Radialis 1 Is supplied solely by the radial nerve





Flexor Carpi Radialis 1 Is supplied solely by the radial nerve F





Flexor Carpi Radialis is supplied solely by the ulnar nerve

Flexor Carpi Radialis 1 Originates from the radius only

2 Originates from the ulna




Flexor Carpi Radialis 1 Originates from the radius only F

2 Originates from the ulna F

3 Originates from the humerus only T



Flexor Carpi Radialis originates from the common flexor origin on the medial epicondyle of the humerus

Flexor Carpi Radialis 1 Attaches to the middle phalanges of digits 2-5

2 Attaches to the distal phalanges of digits 2-5

3 Attaches to the base of the 2nd metacarpal

4 Attaches to the Trapezium

5 Attaches to the base of the 5th metacarpal

Flexor Carpi Radialis 1 Attaches to the middle phalanges of digits 2-5 F

2 Attaches to the distal phalanges of digits 2-5 F

3 Attaches to the base of the 2nd metacarpal T

4 Attaches to the Trapezium F

5 Attaches to the base of the 5th metacarpal F

Flexor Carpi Radialis attaches to the bases of the 2nd and 3rd metacarpals and often gives off a slip to the scaphoid.

Pronator Teres1 Originates from the radius only





Pronator Teres1 Originates from the radius only F




5 Originates from the ulna and humerus only T

Pronator Teres originates from two heads1.Humeral head from the medial epicondyle2.Ulnar head from the medial border of the coronoid process

Pronator Teres 1 Is supplied solely by the radial nerve





Pronator Teres 1 Is supplied solely by the radial nerve F





Pronator Teres is supplied solely by the median nerve

Flexor carpi radialis (FCR)1 is innervated by the ulnar nerve

2 lies medial to the median nerve at the level of the wrist

3 is attached to the lateral epicondyle of the humerus

4 is an adductor of the wrist joint

5 is a flexor of the proximal interphalangeal joint

FCR is innervated by the median nerveFCR is a flexor and abductor of the wrist joint, not adductorFCR is inserted on to the bases of the 2nd and 3rd metacarpals, and does not extend into the digits

Flexor carpi radialis (FCR)1 is innervated by the ulnar nerve F

2 lies medial to the median nerve at the level of the wrist F

3 is attached to the lateral epicondyle of the humerus F

4 is an adductor of the wrist joint F

5 is a flexor of the proximal interphalangeal joint F

Flexor digitorum superficialis (FDS)1 arises, in part, from the radius

2 is supplied exclusively by the median nerve

3 gives rise to four tendons in the distal part of the forearm

4 forms a boundary of the (ante)cubital fossa

5 arises, in part, from the common flexor tendon

FDS arises from the radius, ulna and, via the common flexor tendon, from themedial epicondyle of the humerus.

Flexor digitorum superficialis (FDS)1 arises, in part, from the radius T

2 is supplied exclusively by the median nerve T

3 gives rise to four tendons in the distal part of the forearm

T

4 forms a boundary of the (ante)cubital fossa F

5 arises, in part, from the common flexor tendon T

Transection of the median nerve above the level of the elbow joint1 would impair the function of flexor carpi ulnaris (FCU)

2 would affect cutaneous sensation on the lateral aspect of forearm

3 would affect cutaneous sensation over the thenar region

4 would affect the function of abductor pollicis longus (APL)

5 would affect the function of abductor pollicis brevis (APB)

FCU is innervated by the ulnar nerveThe cutaneous supply to the lateral part of forearm is by the lateral cutaneous nerve of forearm, not median nerve.APL is supplied by the radial nerve, not median nerve

Transection of the median nerve above the level of the elbow joint1 would impair the function of flexor carpi ulnaris (FCU) F

2 would affect cutaneous sensation on the lateral aspect of forearm

F

3 would affect cutaneous sensation over the thenar region T

4 would affect the function of abductor pollicis longus (APL) F

5 would affect the function of abductor pollicis brevis (APB) T

Flexor carpi radialis (FCR) 1 is superficial to flexor retinaculum

2 is innervated by the radial nerve

3 flexes and abducts the wrist joint

4 is inserted onto the base of the thumb metacarpal

5 is inserted into the capitate

FCR is inserted onto the bases of the 2nd and 3rd metacarpals, and occasionally by a slip, to the scaphoid.

Flexor carpi radialis (FCR) 1 is superficial to flexor retinaculum F

2 is innervated by the radial nerve F

3 flexes and abducts the wrist joint T

4 is inserted onto the base of the thumb metacarpal F

5 is inserted into the capitate F

With regard to the flexor compartment of the forearm1 flexor pollicis longus is attached to the radius , ulna and medial

epicondyle of humerus

2 the ulnar nerve lies medial to the flexor digitorum profundus muscle

3 pronator quadratus is innervated by the ulnar nerve

4 palmaris longus is absent in 50 % of Caucasian individuals

5 flexor carpi ulnaris arises in part from the common flexor tendon


epicondyle of humerus


3 pronator quadratus is innervated by the ulnar nerve

4 palmaris longus is absent in 50 % of Caucasian individuals

5 flexor carpi ulnaris arises in part from the common flexor tendon

Pronator quadratus is innervated by the anterior interosseous nerve – branch of median nerve)Palmaris longus is absent unilaterally or bilaterally in 10 to 12 % of individuals – not 50 %


epicondyle of humerusF


T

3 pronator quadratus is innervated by the ulnar nerve F

4 palmaris longus is absent in 50 % of Caucasian individuals F

5 flexor carpi ulnaris arises in part from the common flexor tendon T

Flexor digitorum superficialis (FDS)1 receives its motor innervation from the anterior interosseous

nerve

2 is inserted into the distal phalanges of the fingers

3 is inserted into the proximal phalanges of the fingers

4 gives rise to four tendons in the proximal third of the forearm

5 can mimic the actions of flexor digitorum profundus entirely

FDS is supplied by the main trunk of the median nerve The FDS tendons attach to the bases of the middle - not distal or proximal - phalanges of the fingers.The four tendons of FDS arise in the distal, not proximal, part of the forearm

Flexor digitorum superficialis (FDS)1 receives its motor innervation from the anterior interosseous

nerveF

2 is inserted into the distal phalanges of the fingers F

3 is inserted into the proximal phalanges of the fingers F

4 gives rise to four tendons in the proximal third of the forearm F

5 can mimic the actions of flexor digitorum profundus entirely F

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Exam Questions Forearm Superficial Flexors