upper extremity

Question 1

pierces the coracobrachialis m

Answer 1

musculocutaneous n

Question 2

what muscles does musculocutaneous n supply

Answer 2

• coracobrachialis
• biceps brachii
• brachialis

Question 3

what muscles flex the shoulder

Answer 3

• biceps brachii
• coracobrachialis
• deltoid
• pectoralis major

Question 4

what muscles flex the elbow

Answer 4

• biceps brachii

- brachialis

Question 5

what nerve innervates the triceps

Answer 5

radial n

Question 6

what nerve innervates teres minor and deltoid

Answer 6

axillary n

Question 7

muscles for lateral rotation of shoulder

Answer 7

• suprapinatus
• infraspinatus
• teres minor

Question 8

muscles for medial rotation of shoulder

Answer 8

• subscapularis
• teres major
• lat dorsi

Question 9

abductor muscles of shoulder

Answer 9

• deltoid

- suprapinatus

Question 10

shoulder extensors

Answer 10

• triceps brachii
• teres major
• deltoid
• lat dorsi

Question 11

elbox extensors

Answer 11

triceps brachii

Question 12

protraction and depression of scapula

Answer 12

• pec minor

- serratus anterior

Question 13

scapular retraction

Answer 13

trap and rhomboids

Question 14

scapular elevation and depression

Answer 14

trap

Question 15

adduction, flexion and medial rotation of arm

Answer 15

pec major

Question 16

adduction, extension, and medial rotation of arm

Answer 16

lat dorsi

Question 17

muscles that median n supplies

Answer 17

all except flexor carpi ulnaris and 1/2 flexor digitorum profundus

Question 18

muscles that ulnar n supplies

Answer 18

• 1/2 flexor digitorum profundus

- flexor carpi ulnaris

Question 19

superficial forearm muscles

Answer 19

• pronator teres
• flexor carpi radialis
• palmaris longus
• flexor carpi ulnaris

Question 20

superficial forearm muscles originate from

Answer 20

medial epicondyle

Question 21

attachment of pronator teres

Answer 21

radius

Question 22

attachment of flexor carpi radialis

Answer 22

wrist

Question 23

action of flexor carpi radialis

Answer 23

flexion and abduction of forearm

Question 24

absent in 15% of population

Answer 24

palmaris longus

Question 25

median nerve is found below what muscle

Answer 25

palmaris longus

Question 26

attachment of palmaris longus

Answer 26

2nd and 3 fingers

Question 27

action of palmaris longus

Answer 27

flex wrist

Question 28

attachment of flexor carpi ulnaris

Answer 28

pisiform

Question 29

action of flexor carpi ulnaris

Answer 29

flexion and adduction of wrist

Question 30

what muscle if found in the intermediate layer

Answer 30

flexor digitorum superficialis

Question 31

where does flexor digitorum superficialis stop

Answer 31

at the proximal phalanges

Question 32

action of flexor digitorum superficialis

Answer 32

- flex fingers (at metacarpals and proximal interphalangeal joint) - flex wrist (weakly)

Question 33

3 muscles found in deep layer of forearm

Answer 33

- flexor digitorum profundus - flexor pollicis longus - pronator quadratus

Question 34

muscles that pronate arm

Answer 34

- pronator teres | - pronator quadratus

Question 35

action of deep muscles

Answer 35

``` flex fingers (all joints) flex wrist (weakly) ```

Question 36

where does flexor pollicis longus stop

Answer 36

thumb

Question 37

what nerve supplies all posterior mm

Answer 37

radial n

Question 38

which nerve is below brachioradialis m

Answer 38

radial n

Question 39

flexes the elbow

Answer 39

brachioradialis m

Question 40

lateroposterior muscles in superficial layer

Answer 40

- extensor carpi radialis longus - extensor carpi radialis brevis - extensor digitorum - extensor digiti minimi - extensor carpi ulnaris

Question 41

posterior m to thumb

Answer 41

extensor pollicis brevis AND extensor pollicis longus AND abductor pollicis longus

Question 42

posterior m to second finger

Answer 42

extensor indicis