Muscles

Front 1

internal oblique

Back 1

lies just under external oblique. compresses abdominal organs and maintain or increase intra abdominal pressure aiding in urination defecation and childbirth.

Front 2

orbicularis oris

Back 2

sphincter muscle encircles mouth. closes and puckers lips

Front 3

external oblique

Back 3

compresses abdominal organs and maintain or increase intra abdominal pressure aiding in urination defecation and childbirth

Front 4

internal intercostals

Back 4

lower rib cage and draw ribs colser together. this decreases volume of the thorax and causes expiration of air and breathing

Front 5

ecternal intercostals

Back 5

between ribs. elevates rib cage and increase volume of the thorax resulting in inspiration of air and breathing

Front 6

serratus anterior

Back 6

covers upper lateral surface of the ribs. pulls scapula downward and forward toward chest

Front 7

deltoid

Back 7

primary muscle of the shoulder. abducts and extends upper arm

Front 8

pectoralis major

Back 8

occupies upper quadrant of chest. adduction and medial rotaion of upper arm

Front 9

platysma

Back 9

broad sheet like muscle that covers the front and side of neck. pulls the angle of the mouth downward and backward and assists in opening mouth

Front 10

sternocleidomastoid

Back 10

located on side of neck. contraction of both muscles. flexes head down toward chest.

Front 11

buccinator

Back 11

horizontal muscle located in walls of cheeks. compresses the cheek and holds food between teeth during chewing and interacts with other muscles in facial expression

Front 12

temporalis

Back 12

large fan shaped muscle on side of head. acts synergistically with masseter to raise the mandible

Front 13

zygomaticus

Back 13

draws corner of mouth upward and backward as in smiling and laughing

Front 14

occipitalis

Back 14

pulls the scalp backwards

Front 15

frontalis

Back 15

elevates eyebrows and wrinkles forehead

Front 16

orbicularis oculi

Back 16

sphincter muscle encircles eye. closes eye lids

Front 17

transverse abdominis

Back 17

intermost muscle.compress the abdominalorgans and maintain or increase intra abdominal pressure, aiding in urination, defecation, and childbirth.

Front 18

rectus abdominis

Back 18

compress the abdominal organs and maintain or increase intra abdominal pressure aiding in urination defecation and childbirth

Front 19

trapezius

Back 19

triangular muscle of the upper back. adducts and elevates scapula pulls head backward.

Front 20

latissimus dorsi

Back 20

covers lower back. extends, adducts and rotates the arm medially, pulls shoulder downward and backward

Front 21

infraspinatus

Back 21

rotates arm laterally

Front 22

teres minor

Back 22

rotates arm laterally

Front 23

supraspinatus

Back 23

assists deltoid in abducting upper arm

Front 24

teres major

Back 24

rotates upper arm medially

Front 25

biceps brachii

Back 25

anterior surface of upper arm flexes forearm, rotates forearm laterally

Front 26

brachialis

Back 26

just under the biceps. flexes the forearm

Front 27

triceps brachii

Back 27

covers the posterior surface of the upper arm. extends forearm

Front 28

gluteus maximus

Back 28

buttocks muscle. extends and rotates thigh laterally

Front 29

gluteus medius

Back 29

under gluteus maximus. abduct and rotate the thigh medially

Front 30

gluteus minimus

Back 30

under gluteus maximus. abduct and rotate thigh medially

Front 31

addcutor longus

Back 31

adduct, flex and rotate the thigh laterally

Front 32

adductor brevis

Back 32

adduct, flex and rotate thigh laterally

Front 33

biceps femoris

Back 33

most lateral three of hamstring. flex lower leg, extend thigh, rotates thigh laterally.

Front 34

semimembranosus

Back 34

most medial of hamstrings. flew lower leg, extend thigh, rotate thigh medially

Front 35

semitedinosus

Back 35

flex lower leg, extend thigh, rotate thigh medially

Front 36

rectus femoris

Back 36

anterior central portion of quadraceps.extend lower leg, flexes thigh

Front 37

vastus lateralis

Back 37

lateral part of quadraceps. extend lower leg

Front 38

vastus medialis.

Back 38

extend lower leg

Front 39

vastus intermedius

Back 39

extend lower leg

Front 40

satorius

Back 40

flexes lower leg and thigh, rotates the thigh laterally and leg medially

Front 41

tensor fasciae latae

Back 41

flexes and abducts thigh

Front 42

gracilis

Back 42

adducts thigh and flexes leg

Front 43

gastrocnemius

Back 43

covers the calf. flexes leg. plantar flexes foot

Front 44

soleus

Back 44

under gartocnemius. plantar flexes foot

Front 45

tibialis anterior

Back 45

produces dorsiflexion and inversion of the foot

Front 46

mentalis

Back 46

elevates and wrinkle skin over chin

Front 47

rhomboid major

Back 47

retracts rotates scapulae

Front 48

rhomboid minor

Back 48

retracts, rotates scapulae

Front 49

levator scapulae

Back 49

elevates, retracts, rotates scapulae

Front 50

pectoralis minor

Back 50

depresses scapulae, elevates ribs

Front 51

subscapularis

Back 51

medial rotation of humerus

Front 52

iliopsoas

Back 52

flexes thigh at hip, laterally rotates femur.

Front 53

pectineus

Back 53

adducts thigh at hip

Front 54

fibularis longus

Back 54

eversion of foot

Front 55

fibularis brevis

Back 55

eversion of foot

Front 56

popliteus

Back 56

flexes knee medially rotates leg

Front 57

olfactory nerve

Back 57

sense of smell (I)

Front 58

optic nerve

Back 58

sense of vision (II)

Front 59

oculomotor

Back 59

(III) movement of eye muscles, dilation/constriction of pupil

Front 60

trochlear

Back 60

(IV) movement of eye muscles

Front 61

trigeminal

Back 61

(V) sensations on face and head. movement of eye muscles

Front 62

abducens

Back 62

(VI) abduction of eye

Front 63

facial

Back 63

(VII) sensation of external ear and palate. movement of facial and throat muscles, taste and stimulation of salivary and lacrimal glands

Front 64

vestibulocochlear

Back 64

(VIII) hearing and balance

Front 65

Glossopharyngeal

Back 65

(IX) taste, salivation, hearing, equilibrium, swallowing.

Front 66

vagus

Back 66

(X)sensory reception in throat and abdominal organs, speech formation, taste.

Front 67

accessory

Back 67

(XI) movement of soft palate, pharynx, sternocleidomastoid and trapezius

Front 68

hyoglossal

Back 68

(XII) movement of muscles of tongue and throat