Muscles of The Forearm

Question 1

Extensor carpi radialis longus OIA

Answer 1

O: Lateral supracondylar ridge of humerus
I: Base of MC 2
A: Extend and abduct the hand

Question 2

Extensor Digitorum OIA

Answer 2

O: Lateral epicondyle CEO
I: Extensor expansions of medial 4 digits
A: extends medial digits at MCP, PIP and DIP

Question 3

Extensor Digiti Minimi OIA

Answer 3

O: Lateral epicondyle CEO
I: extensor expansion of 5 digit
A: Extends 5th digit at MCP, PIP, and DIP?

Question 4

Extensor Carpi Ulnaris OIA

Answer 4

O: Lateral epicondyle CEO
I: Base of MC 5
A: Extend and adduct hand

Question 5

Abductor Pollicis Longus OIA

Answer 5

O: Posterior surface of the proximal halves of ulna and radius. Interosseous membrane.
I: Base of MC 1
A: Abduct Thumb. extends at CMP joint

Question 6

Extensor Pollicis Brevis OIA

Answer 6

O: Posterior surface of the distal 1//3 of radius. Interosseous membrane.
I: Dorsal aspect of base of proximal phalanx of thumb
A: Extends proximal phalanx at MCP and CMP

Question 7

Extensor Pollicis Longus OIA

Answer 7

O: Posterior surface of the middle of Ulna. Interosseous membrane.
I: Dorsal aspect of the base of distal Phalanx 1.
A: extends at IP, MCP, and CMP joints of thumb.

Question 8

Extensor Indicis OIA

Answer 8

O: O: Posterior surface of the distal 1//3 of ulna. Interosseous membrane.
I: Extensor expansion of 2nd digit
A: Extends 2nd digit. helps extend wrist.

Question 9

Supinator OIA

Answer 9

O: Lateral epicondyle of humerus; radial collateral and annular ligaments.
I: Proximal 1/3 of radius
A: Supination

Question 10

Brachioradialis Innervation

Answer 10

Radial Nerve, C6 primary

Question 11

Extensor carpi radialis longus Innervation

Answer 11

Radial Nerve, C6 primary

Question 12

Extensor carpi radialis brevis Innervation

Answer 12

Deep Branch of the radial nerve, C7 primary

Question 13

Extensor Digitorum Innervation

Answer 13

Deep Branch of the radial nerve, C7 primary

Question 14

Extensor Digiti Minimi Innervation

Answer 14

Deep Branch of the radial nerve, C7 primary

Question 15

Extensor Carpi Ulnaris Innervation

Answer 15

Deep Branch of the radial nerve, C7 primary

Question 16

Abductor Pollicis Longus Innervation

Answer 16

Posterior Interosseous Nerve. C8 Primary

Question 17

Extensor Pollicis Brevis Innervation

Answer 17

Posterior Interosseous Nerve. C8 Primary

Question 18

Extensor Pollicis Longus Innervation

Answer 18

Posterior Interosseous Nerve. C8 Primary

Question 19

Extensor Indicis Innervation

Answer 19

Posterior Interosseous Nerve. C7 Primary

Question 20

Supinator Innervation

Answer 20

Deep Branch of radial Nerve. C6 Primary

Question 21

Brachioradialis OIA

Answer 21

O: Lateral supracondylar ridge of humerus
I: Lateral surface of the Radius just proximal to styloid process
A: Elbow Flexion and Supination and pronation

Question 22

Extensor carpi radialis brevis OIA

Answer 22

O: Lateral epicondyle of the humerus (CEO)
I: base of MC 3
A: extend and abduct the hand

Question 23

Pronator Teres OIA

Answer 23

O: Ulnar Head: Coronoid Process
O: Humeral Head: Medial Epicondyle (CFO)
I: middle convexity of lateral surface of the radius
A: Pronation and elbow flexion

Question 24

Pronator Teres Innervation

Answer 24

Medial nerve, C7 Primary

Question 25

Flexor Carpi Radialis OIA

Answer 25

O: Medial Epicondyle (CFO) I: Base of MC 2 A: Flexion and abduction of hand

Question 26

Flexor Carpi Radialis innervation

Answer 26

Median Nerve, C7 primary

Question 27

Palmaris Longus OIAN

Answer 27

O: Medial Epicondyle (CFO) I: Distal Flexor retinaculum, apex of palmar aponeurosis. A: Tenses palmar aponeurosis and kinda flexes hand.

Question 28

Palmaris Longus innervation

Answer 28

Median Nerve, C7, C8 primary

Question 29

Flexor Carpi Ulnaris OIA

Answer 29

O: Humeral head: Medial Epicondyle (CFO) O: Ulnar head: Olecranon and posterior border of ulna I: Pisiform, Hook of hamate, and base of MC 5 A: flex and adduct wrist

Question 30

Flexor Carpi Ulnaris Innervation

Answer 30

Ulnar Nerve, C8 primary

Question 31

Flexor digitorm Profundus OIA

Answer 31

O: medial and anterior surface of ulna. interosseous membrane. I: Medial Part: Base of distal phalanges 4 and 5 I: Lateral Part: base of distal Phalanges 2 and 3 A: flexes DIP, PIP, primarily.

Question 32

Flexor digitorm Profundus Innervation

Answer 32

Lateral half: Anterior interosseous, C8 Primary | Medial half: Ulnar nerve, T1 primary

Question 33

Flexor digitorm Superficialis OIA

Answer 33

O: humero-ulnar head: Medial epicondyle (CFO) O: Radial Head: Superior half of anterior border or radius. I: shafts of middle phalanges 2-5 A: Flex PIP. also flexes MCP joints.

Question 34

Flexor digitorm Superficialis Innervation

Answer 34

Median nerve C7 C8 T1 primary.

Question 35

Flexor Pollicis Longus OIA

Answer 35

O: Anterior radius and interosseous membrane I: base of distal phalanx of thumb A: flexes IP joint of thumb, also MCP and CMC

Question 36

Flexor Pollicis Longus Innervation

Answer 36

Anterior interosseous nerve C8 primary

Question 37

Pronator Quadratus OIA

Answer 37

O: distal 1/4 of anterior surface of radius I: distal 1/4 of anterior surface of ulna A: pronation, help bind radius and ulna

Question 38

Pronator Quadratus Innervation

Answer 38

Anterior interosseous nerve C8 primary