Musculature of the forearm

Question 1

Muscles in Anterior compartment

PT FCR PL FDS FCU

Answer 1

both flexor and extensor

pronator teres, flexor carpi radialis, palmaris longus, flexor digitorum superficialis and flexor carpi ulnaris

Question 2

what is the pronator teres origin insertion and action

Answer 2

O = The medial epicondyle
I = Lateral surface of radius
A = pronation

Question 3

What is the Flexor carpi radialis Origin insertion and action

Answer 3

O = Medial epicondyle
I = Bases of metacarpal bones
A = wrist flexion and radial deviation

Question 4

What is the palmaris longus Origin insertion and action

Answer 4

O = Medial epicondyle of humerus
I = Flexor retinaculum
A = Wrist joint: Wrist flexion

Question 5

What is the flexor digitorum superficialis Origin insertion and action

Answer 5

O = medical epicondyle
I = Sides of middle phalanges
A = Finder flexion

Question 6

what is the flexor carpi ulnaris origin insertion and action

Answer 6

O = medical epicondyle
I = carpal bones
A = wrist flexion and ulnar deviation

Question 7

the 4 superficial muscles of the forearm

PT FCR PL FCU

Answer 7

pronator Teres
Flexor carpi radialis
Palamaris longus
flexor carpi ulnaris

Question 8

1 intermediate layer of the forearm

Answer 8

Flexor digitorum superficialis

Question 9

the deep group of the forearm 3 muscles
FDP FPL PQ

Answer 9

1. flexor digitorum prolongus
2. flexor pollicis longus
3. pronator quadratus

Question 10

what are the posterior forearm muscles (6)

B ECRL ECRB ED ECU EDM

Answer 10

brachioradialis, extensor carpi radialis longus, extensor carpi radialis brevis, extensor digitorum, extensor carpi ulnaris and extensor digiti minimi.

Question 11

What is the brachioradialis origin insertion and action

Answer 11

O = Lateral supracondylar ridge of humerus
I = (Proximal to) styloid process of radius
A = FORARM FLEXION

Question 12

What is the Extensor carpi radialis longus orgin inserton and action

Answer 12

O = Lateral supracondylar ridge of humerus
I = Posterior aspect of base of metacarpal
A = Hand extension, hand abduction (radial deviation)

Question 13

What is the Extensor carpi radialis BREVIS orgin inserton and action

Answer 13

O = Lateral epicondyle of humerus (common extensor tendon)
Insertion = Posterior aspect of base of metacarpal bone 3
Action = Wrist joints: Hand extension, hand abduction (radial deviation)

Question 14

what is the extensor digitorum origin insertion and action

Answer 14

Lateral epicondyle of humerus (common extensor tendon)
Insertion= Extensor expansions of digits 2-5
Action= finger extension

Question 15

what is the extensor carpi ulnaris origin insertion and action

Answer 15

Origin= Lateral epicondyle of humerus, posterior border of ulna
Insertion= Base of metacarpal bone 5
Action= Wrist joint: Hand extension and adduction

Question 16

what is the extensor digitum minimi origin insertion and action

Answer 16

O = distal humus
I = fifth digit
A = extends little finger

Question 17

what is the deep posterior forearm muscles
S APL EPB EPL EI

Answer 17

supinator, abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus and Extensor indicis

Question 18

what is the supinator origin insertion and action

Answer 18

O = Lateral epicondyle of humerus,
Insertion proximal third of radius
ActionProximal radioulnar joint: Forearm supination

Question 19

what is the Abductor pollicis longus origin insertion and action

Answer 19

O = interosseus membrane
Insertion= Base of metacarpal bone 1, (trapezium bone)
Action= Hand extension, Thumb abduction and extension

Question 20

what is the extensor pollicis brevis origin insertion and action

Answer 20

O= Posterior surface of distal third of radius and interosseus membrane
Insertion= Posterior aspect of base of proximal phalanx of thumb
Action= Carpometacarpal and metacarpophalangeal joint 1: Thumb extension

Question 21

what is the extensor pollicis longus origin insertion and action

Answer 21

O = Posterior surface of middle third of ulna and interosseus membrane
Insertion= Posterior aspect of base of distal phalanx of thumb
Action= Weak hand extension, Thumb extension

Question 22

what is the Extensor indicis origin insertion and action

Answer 22

O = Pinterosseus membrane
Insertion= Extensor expansion of index finger
Action=Weak hand extension, Finger extension

Question 23

muscles in the forearm responsible for Wrist Flexion

Answer 23

Flexor carpi radialis

Palmaris longus

Flexor carpi ulnaris

flexor super digiti

Question 24

muscles in the forearm responsible for wrist extension

Answer 24

Extensor carpi radialis (longus and brevis)

Extensor carpi ulnaris

Abductor pollicis longus

Question 25

muscles in the forearm responsible for pronation

Answer 25

Pronator teres pronator quadratus

Question 26

muscles in the forearm responsible for supination

Answer 26

supinator

Question 27

muscles in the forearm responsible for radial deviation

Answer 27

Flexor carpi radialis Extensor carpi radialis (longus and brevis)

Question 28

muscles in the forearm responsible for ulnar deviation

Answer 28

Flexor Carpi Ulnaris Extensor Carpi Ulnaris

Question 29

muscles in the forearm responsible for finger flexion

Answer 29

Flexor digitorum superficialis Flexor digitorum profundus Flexor pollicis longus

Question 30

muscles in the forearm responsible for finger extension

Answer 30

Extensor digiti minimi Extensor pollicis brevis Extensor pollicis longus Extensor indicis

Question 31

posterior axillary fold.

Answer 31

Latissimus dorsi and teres major form the posterior axillary fold.

Question 32

originates from the humerus and inserts on to the ulnar coronoid process

Answer 32

The brachialis i

Question 33

Originating from the coracoid process and inserting on the humerus

Answer 33

he coracobrachialis muscle

Question 34

Which muscle DOES NOT form part of the 'rotator cuff'?

Answer 34

teres major