Wrist Flexor Muscles

Question 0

Distal attachment Flexor Carpi Ulnaris

Answer 0

Attaches to and invests pisiform

Tendon prolongs to reach hook of hamate and base of 5th metacarpal, by pisohamate and pisometacarpal ligaments

Question 1

Proximal attachment Flexor Carpi Ulnaris

Answer 1

Humeral head- medial epicondyle of humerus via common flexor tendon
Ulnar head- medial border of olecranon process and from proximal two thirds of posterior border of ulna

Question 2

Nerve supply FCU

Answer 2

Ulnar Nerve C7, C8

Question 3

Proximal attachment Flexor Carpi Radialis

Answer 3

Medial epicondyle of the humerus, via common flexor tendon and the antebrachial fascia

Question 4

Distal attachment Flexor Carpi Radialis

Answer 4

Palmar surface of base of 2nd metacarpal

Sends a slip to base of 3rd metacarpal

Question 5

Nerve supply FCR

Answer 5

Median Nerve C6, C7

Question 6

Proximal attachment Flexor Digitorum Superficialis

Answer 6

Medial or humeral head- medial epicondyle of humerus via common flexor tendon.
Anterior part of ulnar collateral ligament of elbow and tubercle on medial aspect of coronoid process
Radial head- oblique line on proximal two thirds of anterior border of radius, extending from radial tuberosity to insertion of Pronator Teres

Question 7

Distal attachment Flexor Digitorum Superficialis

Answer 7

Sides of the middle phalanx of each of the fingers

Question 8

Nerve supply FDS

Answer 8

Median Nerve C7, C8, T1

Question 9

Proximal attachment Flexor Digitorum Profundus

Answer 9

Medial aspect of coronoid process of the ulna
Proximal three quarters of the anterior and medial aspects of the ulna
Ulnar side of Middle third of anterior surface of interosseous membrane and an aponeurosis attaching to FCU to the posterior border of the ulna

Question 10

Distal attachment Flexor Digitorum Profundus

Answer 10

Each of the four tendons attaches to the base of the palmar surface of the distal phalanx of the fingers

Question 11

Nerve supply FDP

Answer 11

Lateral part (index and middle fingers)- Anterior Interosseous branch of Median Nerve C7, C8, T1
Medial part (ring and little fingers)- Ulnar Nerve C8, T1

Question 12

Proximal attachment Flexor Pollicis Longus

Answer 12

Anterior aspect of radius between radial tuberosity and insertion of Pronator Quadratus
Adjacent part of interosseous membrane
Occasionally a small slip from medial border of coronoid process of ulna

Question 13

Distal attachment Flexor Pollicis Longus

Answer 13

Palmar surface of base of distal phalanx of thumb

Question 14

Nerve supply FPL

Answer 14

Anterior Interosseous branch of Median Nerve C8, T1