MSK - Muscles UE

Question 1

Upper Trap

Answer 1

Action: shrug, scap up rotation
Nerves: CN 11

Question 2

Pec major+minor

Answer 2

Action: sh horiz add
Nerves: med & lat pectoral (C5-T1)

Question 3

Pec minor

Answer 3

Action: scap down rotation
Nerves: med pectoral (C8-T1)

Question 4

Serratus anterior

Answer 4

Action: scap protract & up rot
Nerves: Long thoracic (C5-7)

Question 5

Levator scap

Answer 5

Action: scap elev + down rot
Nerves: dorsal scapular (C5)

Question 6

Rhomboids

Answer 6

Action: scap add, elev, & down rot
Nerves: dorsal scapular (C4-5)

Question 6

Supraspinatus

Answer 6

Action: sh abd
Nerves: suprascapular (C5-6)

Question 7

Infraspinatus

Answer 7

Action: sh ER
Nerves: suprascapular (C5-6)

Question 8

Deltoid

Answer 8

Action: sh abd, flex, ext
Nerves: axillary (C5-6)

Question 9

Teres minor

Answer 9

Action: sh ER
Nerves: axillary (C5-6)

Question 10

Biceps brachii

Answer 10

Action: elbow flex & sup
Nerves: musculocutaneous (C5-6)

Question 11

Muscles involved in shoulder IR+add

Answer 11

Lat dorsi
Teres major
Subscap
Pec major

Question 12

Coracobrachialis

Answer 12

Action: sh flex + add
Nerves: musculocutaneous (C5-7)

Question 13

Brachialis

Answer 13

Action: elbow flex
Nerves: musculocutaneous (C5-6)

Question 14

FDP (ulnar)

Answer 14

Action: DIP flex (4th & 5th)
Nerves: ulnar (C8-T1)

Question 15

FCU

Answer 15

Action: wrist flex (ulnar)
Nerves: ulnar (C7-T1)

Question 16

Adductor Pollicis

Answer 16

Action: thumb add
Nerves: ulnar (C8-T1)

Question 17

Interossei

Answer 17

Action: MCP flex, add/abd (2-5)
Nerves: ulnar (C8-T1)

Question 18

Pronator Teres + Pronator Quadratus

Answer 18

Action: pronation
Nerves: median & anterior interosseus (C6-8)

Question 19

FCR

Answer 19

Action: wrist flex (radial)
Nerves: median (C6-7)

Question 20

Palmaris Longus

Answer 20

Action: wrist flex
Nerves: median (C7-T1)

Question 21

FDS

Answer 21

Action: PIP flex
Nerves: median (C8-T1)

Question 22

FPL

Answer 22

Action: thumb IP flex
Nerves: median (C8-T1)

Question 23

FDP (radial)

Answer 23

Action: DIP flex (2-3)
Nerves: median (C7-T1)

Question 24

APB

Answer 24

Action: thumb abd Nerves: median (C8-T1)

Question 25

FPB

Answer 25

Action: thumb MCP flex Nerves: median (C8-T1)

Question 26

Lumbricals

Answer 26

Action: MCP flex & IP ext (2-5) Nerves: median (C8-T1)

Question 27

Brachioradialis

Answer 27

Action: elbow flex in neutral sup/pron Nerves: radial (C5-6)

Question 28

Triceps brachii

Answer 28

Action: elbow ext Nerves: radial (C6-8)

Question 29

ECRL

Answer 29

Action: wrist ext & RD Nerves: radial (C6-7)

Question 30

extensor digitorum

Answer 30

Action: MCP + IP ext (2-5) Nerves: radial (C7-8)

Question 31

ECU

Answer 31

Action: wrist ulnar ext Nerves: radial (C7-8)

Question 32

Supinator

Answer 32

Action: sup Nerves: radial (C6-7)

Question 33

APL

Answer 33

Action: thumb MCP abd Nerves: radial/posterior interosseus (C7-8)

Question 34

EPL/EPB

Answer 34

Action: thumb ext Nerves: radial/posterior interosseus (C7-8)

Question 35

Extensor indicis

Answer 35

Action: ext (2nd digit) Nerves: radial/posterior interosseus (C7-8)

Question 36

Extensor digiti minimi

Answer 36

Action: ext (5th digit) Nerves: radial/posterior interosseus (C7-8)

Question 37

Myotome C4

Answer 37

upper trap (shrug)

Question 38

Myotome C5

Answer 38

deltoid

Question 39

Myotome C6

Answer 39

biceps

Question 40

Myotome C7

Answer 40

FCU, wrist flex

Question 41

Myotome T1

Answer 41

interossei (MCP flex, abd/add)

Question 42

Myotome C8

Answer 42

APL (thumb abd)