UE Muscle innervation + movement

Question 1

sternoclediomastoid

Answer 1

Movement: ipsilateral sidebending and contralateral rotation

Innervation: Spinal accessory

c1-c4

Question 2

upper trapezius

Answer 2

Movement: shoulder elevation (shrug), upward rotation of the scapula
Innervation: spinal accessory
c1-c4

Question 3

pec major and minor

Answer 3

Movement: horizontal adduction
Innervation: medial and lateral pectoral nerve for the major and just the medial for the minor

Question 4

pectoralis minor

Answer 4

Movement: scapular downward rotation
Innervation: medial pectoral nerve
c8-t1

Question 5

serratus anterior

Answer 5

Movement: scap protraction, upward rotation,
Innervation: long thoracic nerve
c5-c7

Question 6

levator scapula

Answer 6

Movement: downward rotation of scapula - elevate scapula
Innervation: dorsal scapular nerve
c5

Question 7

rhomboids

Answer 7

Movement: retraction of the scapula and downward rotation
Innervation: dorsal scapular nerve
c4c5

Question 8

supraspinatus

Answer 8

Movement: shoulder abduction
Innervation: suprascapular nerve
c4-c6

Question 9

infraspinatus

Answer 9

Movement: External rotation
Innervation: suprascapular nerve
c4-c6

Question 10

latissimus dorsi

Answer 10

Movement: extension, adduction, and internal rotate at the GH
Innervation: Thoracodorsal nerve

Question 11

Teres major (mini lat)

Answer 11

Movement: extension, adduction, and internal rotation
Innervation: lower subscapular nerve

Question 12

subscapularis

Answer 12

Movement: IR of the shoulder
Innervation: upper and lower subscapular nerve

Question 13

teres minor

Answer 13

Movement: external rotation of the shoulder
Innervation: axillary nerve c5-c6

Question 14

deltoid

Answer 14

Movement: shoulder abduction, flexion, and extension
Innervation: axillary nerve

c5-c6

Question 15

muscle combination that accomplish shoulder internal rotation and adduction

Answer 15

lat, ter major, subscap, and pec major

Question 16

bicep brachii

Answer 16

Movement: elbow flexion and forearm supination
Innervation: musculocutaneous nerve c5-c6

Question 17

corachobrachialis

Answer 17

Movement: adduction of the shoulder and shoulder flexion
Innervation: musculocutaneous c6-c7

Question 18

biceps brachii in conjunction with brachialis

Answer 18

Movement: elbow flexion
Innervation: musculocutaneous c5c6

Question 19

flexor digitorum profundus (ulnar part)

Answer 19

Movement: flexion of the dip at 4 and 5
Innervation: ulnar nerve c7-t1

Question 20

flexor carpi ulnaris

Answer 20

Movement: wrist flexion and ulnar deviation
Innervation: ulnar nerve
c7-t1

Question 21

adductor pollicis

Answer 21

Movement: thumb adduction
Innervation: deep ulnar
c8-t1

Question 22

abductor digiti minimi

Answer 22

Movement: abduct pinky
Innervation: deep ulnar
c8-t1

Question 23

opponens digiti minimi

Answer 23

Movement: opposition of the pinky
Innervation: deep ulnar - c8-t1

Question 24

flexor digiti minimi brevis

Answer 24

Movement: 5th digit MCP flexion
Innervation: deep ulnar c8-t1

Question 25

interossei

Answer 25

Movement: 2-5 digit MCP flexion, adduction, abduction

PAD - palmar - adduction
DAB - dorsal abduction
Innervation: deep ulnar c8-t1

Question 26

pronator teres

Answer 26

Movement: pronation of forearm
Innervation: median c6c7

Question 27

pronator quadratus

Answer 27

Movement: pronation of forearm
Innervation: anterior interosseous of median

Question 28

flexor carpi radialis

Answer 28

Movement: flex wrist and radial deviate
Innervation: median nerve c6cc7

Question 29

palmaris longus

Answer 29

Movement: wrist flexion
Innervation: median nerve c7-t1

Question 30

flexor digitorum superficialis

Answer 30

Movement: flex at the pip 2-5
Innervation: anterior interosseus of the median nerve

Question 31

flexor pollicis longus

Answer 31

Movement: flex interphalangeal at the thumb
Innervation: anterior interossuous - c7-t1

Question 32

flexor digitorum profundus (radial part)

Answer 32

Movement: flex at the dip of 2-3
Innervation: anterior interosseous of median

Question 33

abductor pollicis brevis

Answer 33

Movement: thumb abduction
Innervation: median

Question 34

flexor pollicis brevis

Answer 34

Movement: flex the thumb at MCP
Innervation: median and ulnar nerve?

Question 35

opponens pollicis

Answer 35

Movement: oppose the thumb
Innervation: median nerve

Question 36

lumbricals

Answer 36

Movement: 2-5 mcp flexion and ip extension
Innervation: median and ulnar nerve

2-3 median
4-5 ulnar