Intermediate/Deep flexors of forearm

Question 1

Where does flexor digitorum superficialis originate?

Answer 1

Medial epicondyle

Question 2

Where does flexor digitorum superficialis insert?

Answer 2

Tendon splits to pass around tendon of FDP and inserts onto the middle phalanx of each finger

Question 3

What is the innervation of flexor digitorum superficialis?

Answer 3

Median Nerve C7, C8, T1

Question 4

What is the origin of flexor digitorum profundus?

Answer 4

Anterior and medial surfaces of the ulna and interosseous membrane.

Question 5

What is the insertion of flexor digitorum profundus?

Answer 5

Palmar surface of the distal phalanx of digits II-V

Question 6

What is the innervation of flexor DP

Answer 6

Medial part: Ulnar nerve (C8, T1)

Lateral part: anterior interosseous branch of median nerve (C8, T1)

Question 7

What is the action of FDP

Answer 7

Flexes distal phalanges at distal interphalangeal joints of medial four digits, assists with flexion of hand

Question 8

What is the origin of flexor pollicis longus?

Answer 8

Proximal 3/4 of medial and anterior surfaces of the radius and the radial half of the interosseous membrane

Question 9

What is the insertion of flexor pollicis longus?

Answer 9

Base of distal phalanx of thumb

Question 10

What is the innervation of flexor pollicis longus?

Answer 10

Anterior interosseous nerve from median nerve (C8, T1)

Question 11

What is the action of flexor pollicis longus?

Answer 11

Flexes phalanges of 1st digit

Question 12

What is the origin of pronator quadratus?

Answer 12

Distal 1/4 of anterior/medial surface of ulna

Question 13

What is the insertion of pronator quadratus?

Answer 13

Distal 1/4 of anterior surface of radius

Question 14

What is the innervation of pronator quadratus?

Answer 14

Anterior interosseous nerve from median nerve (C8, T1)

Question 15

What is the action of pronator quadratus?

Answer 15

Pronates forearm, deep fibres bind radius and ulna together