Week four OIA Upper E

Question 1

Origin of Abductor pollicis longus

Answer 1

Posterior surface of radius and ulna, deep to extensors

Post to radius and ulna
BD = radius and ulna

Question 2

Insertion of abductor pollicis longus

Answer 2

Base of 1st metacarpal

Question 3

Action of abductor pollicis longus

Answer 3

Abducts and extends thumb at CMC

Question 4

Origin of pronator teres

Answer 4

Common flexor tendon from the medial epicondyle of humerus, coronoid process of the ulna.

Medial is epic, process of coors light

Question 5

Insertion of pronator teres

Answer 5

Middle of lateral surface radius (1/3)

M-L of 1/3 radius

Question 6

Action of pronator teres

Answer 6

Pronation of forearm assists in elbow flexion

Question 7

Origin of palmaris longus

Answer 7

Common flexor tendon medial epicondyle

Question 8

Insertion of palmaris longus

Answer 8

Flexor retinaculum palmar aponeurosis

Palmaris = palmar
(RPA)

Question 9

Action of palmaris longus

Answer 9

Tensor palmar fascia flexion of wrist and elbow

Question 10

Origin of flexor carpi radialis

Answer 10

Common flexor tendon medial epicondyle of humerus

Question 11

Insertion of flexor carpi radialis

Answer 11

The base of 2 and 3 metacarpal

Question 12

Action of flexor carpi radialis

Answer 12

Flexion of wrist, abducts wrist, flexion of elbow

Question 13

Origin of flexor digitorum superficialis

Answer 13

Common flexor tendon medial epicondyle coracoid process ulna, proximal shaft radius

Question 14

Insertion of flexor digitorum superficialis

Answer 14

Sides of middle phalanges of 2-5 fingers

Middle 2-5

Question 15

Action of flexor digitorum superficialis

Answer 15

Flexion MCP and PIP of 2-5th flexion of the wrist

Question 16

Origin of flexor digitorum profundus

Answer 16

Anterior, medial surface of proximal 3/4 of ulna

Question 17

Insertion of flexor digitorum profundus

Answer 17

Base of distal phalange 2-5, palmar surface

Distal 2-5

Question 18

Action of flexor digitorum profundus

Answer 18

Flexion of MCP and DIP of 2-5th, may flexion of the wrist

Question 19

Origin of flexor pollicis longus

Answer 19

The anterior surface of the radius, deep to flexors, interosseous membrane

Question 20

Insertion of flexor pollicis longus

Answer 20

The base of the distal phalange thumb

Question 21

Action of flexor pollicis longus

Answer 21

Flexion of IP of thumb assists flexion thumb MCP and CMC

Question 22

Origin of pronator quadratus

Answer 22

The medial, anterior surface of the distal ulna

M-A of ulna

Question 23

Insertion of pronator quadratus

Answer 23

Lateral, anterior surface of distal radius

L-A of radius

Question 24

Action of pronator quadratus

Answer 24

Pronates forearm

Question 25

Origin flexor carpi ulnaris

Answer 25

common flexor tendon medial epicondyle posterior proximal 2/3 ulna

Question 26

Insertion of flexor carpi ulnaris

Answer 26

Pisiform, hook of hamate, base of 5th metacarpal ## Footnote 5 hooks of the pisiform

Question 27

Action of Flexor carpi ulnaris

Answer 27

Flexion wrist adducts wrist, may flex the elbow

Question 28

Origin of palmaris brevis

Answer 28

Palmar aponeurosis

Question 29

Insertion of palmaris brevis

Answer 29

The skin of hypothenar eminence

Question 30

Action of palmaris brevis

Answer 30

tightens palmar aponeurosis ## Footnote Tightens origin