Kinesiology Exam 3

Front 1

flexor carpi radialis

Back 1

flex and radially diviate

median nerve

Front 2

flexor carpi ulnaris

Back 2

wrist flexion, ulnar diviation

ulnar nerve

Front 3

Palmaris longus

Back 3

wrist flexion

median nerve

Front 4

Extensor carpi radialis longus and brevis

Back 4

wrist extension and radial deviation

radial nerve

Front 5

Extensor Carpi Ulnaris

Back 5

wrist extension and ulnar deviation

Radial nerve

Front 6

Felxor digitorum superficialis

Back 6

flex wrist, PIP flexion.
It is compartmentalized to allow individule flexion of PIP joints

Median nerve

Front 7

Flexor digitorum profoundus

Back 7

flexes wrist and DIP flexion

Digits 2&3 are median nerve
Digits 4&5 are ulnar nerve

Front 8

Extensor digitorum

Back 8

wrist extension and IP extension of digits 2-5

Radial nerve

Front 9

Extensor digiti minimi

Back 9

extension of fifth digit and assists with wrist extension

radial nerve

Front 10

Extensor indicis

Back 10

extends second digit

radial nerve

Front 11

Dorsal Interossei

Back 11

is intrinsic muscle located on dorsal side of the hand.

It ABducts 234 digits, adduct 3 digit and first dorsal interossei assists thumb adduction

ulnar

Front 12

Palmar interossei

Back 12

is intrinsic located on palmar side

adducts 245 digits

ulnar nerve

Front 13

Hypothenar muscles are

Back 13

all intrinsic
innervated by ulnar nerve
include:
abductor digiti minimi (abd MCP j
flexor digiti minimi (flex MCP j)
opponenes digiti minimi (opposistion)

Front 14

Extrinsic thumb muscles

Back 14

are all innervated by radial n
include:
extensor pollicus longus (ext CMC MCP and IP and assists wrist ext)
extensor pollicis brevis (ext CMC and MCP and assists wrist ext)
Abductor pollicis longus (abducts wrist and CMC)

Front 15

Extrinsic thumb muscles that are/is innervated by median nerve . . .

Back 15

lexor pollicis longus (flexes IP of thumb and assists MCP CMC and wrist flexion)
innervated by median nerve

Front 16

thenar muscles

Back 16

opponens pollicis (opposition of thumb and median n)
Abductor pollicis brevis (abducts CMC and MCP and assists in opposition Inn by MedianN)
Flexor Pollicis brevis (flex CMC and MCP and assists in opposition Inn by median and Ulnar N)
adductor Pollicis (adducts CMC and MCP and inn by ulnar nerve)

Front 17

Brachialis

Back 17

*acts only during elbow flexion, reason because it inserts on the ulna, so it provides flexion in all radioulnar positions and max force is at 120 deg flexion
innerated by musculocutaneous

Front 18

Biceps brahii

Back 18

acts at shoulder and elbow and radioulnar joints

Greatest flexion force is between 30-120 and this improves with shoulder hyperextension

musculocutaneous n

Front 19

more biceps brachii

Back 19

it inserts on the radius, so the force is greatest with a neutral or supinated wrist and is weak when pronated. It is also only active against resistance

Front 20

brachioradialis

Back 20

primarily an elbow flexor and strongest in neutral posistion

can be a supinator or a pronator depending on hand position (pronates during flexion if supinated and vise)
max force is at 120 degress flexion
Radial nerve

Front 21

pronator teres

Back 21

Primarily is a forearm pronator, but will provide additional flexion force to overcome high resistance

medial nerve

Front 22

triceps brachii

Back 22

has three heads
medial=*"workhorse extensor"
long h=least active
short h=strongest (but relatively inactive unless against resistance)
radial nerve

Front 23

anconeus

Back 23

orks with triceps to extend elbow
abducts the ulna during forearm pronation
elbow joint stabilizer
radial nerve

Front 24

pronator quadratus

Back 24

forearm pronator, not technically at elbow.
has greater activity than pronator teres regardless of forearm position, speed of contraction, and resistance load
median N

Front 25

Supinator

Back 25

provides supination at all elbow flexion angles

radial nerve

Front 26

List the muscles and their nerves for scapular motion

Back 26

trapezius-spinal accessory
levator scap-dorsal scapular
rhomboids- dorsal scap
serratus anterior=long thoracic
pectoralis minor-pectoral n

Front 27

list the muscles that elevate the scap

Back 27

levator scapulae
rhomboid major/minor
upper trap
upper serratus anterior

Front 28

Muscles of depression

Back 28

lower trapezius
lower serratus anterior

Front 29

muscle that pronate the scap

then the muscles that retract

Back 29

serratus anterior (upper and lower)

Trapezius and rhomboids

Front 30

muscles that laterally rotate the scap

muscles the medially rotate the scap

Back 30

upper and lower traps and lower serratus anterior

levator scap
rhomboids and anterior pec minor and upper serratus anterior