Exam Questions Forearm Superficial Flexors

Questions
Forearm Superficial Flexors

The following muscles are superficial flexors of the forearm
1 Flexor digitorum profundus
2 Flexor pollicis longus
3 Flexor carpi radialis
4 Pronator quadratus
5 Palmaris Longus

1 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

1 Flexor carpi ulnaris
2 Flexor pollicis brevis
3 Abductor pollicis longus
5 Pronator teres

1 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 is
2 Flexor pollicis brevis
5 Pronator teres

This muscle is
1 Flexor carpi ulnaris F
2 Flexor pollicis brevis F
4 Flexor carpi radialis F
5 Pronator teres T

This muscle is
1 Palmaris longus
2 Flexor digitorum superficialis
5 Pronator teres

This muscle is
1 Palmaris longus T
2 Flexor digitorum superficialis F
5 Pronator teres F

This muscle is
1 Palmaris longus F
5 Pronator teres F

This muscle is
1 Palmaris longus F
2 Flexor digitorum superficialis T
5 Pronator teres F

This muscle is
1 Palmaris longus
2 Flexor digitorum superficialis
5 Pronator teres

This muscle is
1 Palmaris longus F
3 Flexor carpi ulnaris T
5 Pronator teres F

Flexor Digitorum Superficialis
1 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

1 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.

1 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

1 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 ligament
2.Ulnar head from the coronoid process of the ulna
3.Radial head from the superior half of anterior border of radius

1 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

1 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 Ulnaris
5 Originates from the ulna and humerus

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 humerus
2.Ulnar head from the olecranon and posterior border of the ulna

Flexor Carpi Ulnaris attaches to the
1 Pisiform
2 Capitate
3 Hamate
4 4th metacarpal
5 5th metacarpal

Flexor Carpi Ulnaris attaches to the
1 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

1 Is supplied solely by the radial nerve
2 Is supplied by the radial and ulnar nerves

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 Longus
2 Originates from the ulna

Palmaris Longus
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

Flexor Carpi Radialis is supplied solely by the ulnar nerve

2 Originates from the ulna

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

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

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 Teres

Pronator Teres
5 Originates from the ulna and humerus only T
Pronator Teres originates from two heads
1.Humeral head from the medial epicondyle
2.Ulnar head from the medial border of the coronoid process

Pronator Teres

Pronator Teres
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 nerve
FCR is a flexor and abductor of the wrist joint, not adductor
FCR is inserted on to the bases of the 2nd and 3rd metacarpals, and does not extend
into the digits
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 the
medial epicondyle of the humerus.
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 joint
1 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 nerve
The 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 joint
1 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

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.
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 forearm
1 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

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 %
With regard to the flexor compartment of the forearm
1 flexor pollicis longus is attached to the radius , ulna and medial
epicondyle of humerus
F
2 the ulnar nerve lies medial to the flexor digitorum profundus
muscle
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

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
1 receives its motor innervation from the anterior interosseous
nerve
F
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

Exam Questions Forearm Superficial Flexors

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Exam Questions Forearm Superficial Flexors