Skeletal Muscle Anatomy Lab List

Temporalis

Closes Jaw

masseter

Closes jaw

Epicranius- Frontalis

elevates eyebrows

Occipitalis

Pulls scalp back posteriorly

Orbicularus Oculi

Closes eye

Zygomaticus

raises corners of mouth (smile)

Orbicularis Oris

Closes lip

Levator anguli oris

raises angle of mouth superiorly (smile)

Buccinator

Pulls cheek in

Risorius

pulls angle of mouth laterally

Depressor labii inferioris

Protrudes lower lip

Depressor anguli oris

draws corners of mouth inferiorly (frown)

Mentalis

protrudes lower lip

M

MUSCLES OF NECK

mylohyoid

elevates hyoid and floor of mouth

thyrohyoid

depresses hyoid bone

sternohyoid

depresses hyoid and larynx

Splenius Capitus

extends and rotates head

sternocleidomastoid

flex and rotate head

scalenes

move head laterally

levantor scapulae

elevates scapula

MUSCLES OF TORSO

pectoralis major

flex arm

pectoralis minor

protract and depresses scapula

serratus anterior

protract and superiorly rotate scapula

Intercostalis

elevate and depress rib cage

rectus abdominus

flexes trunk

external oblique

compresses abdominal cavity

internal oblique

compresses abdominal cavity

transverse abdominus

compresses abdominal cavity

trapezius

retracts and depresses scapula

infraspinatus

laterally rotates humerus

supraspinatus

abduction of humerus

teres major

adducts arm

subscapularis

adducts humerus

latissimus dorsi

adducts arm

rhomboid major

retracts scapula

MUSCLES OF UPPER LIMB

deltoid

abducts arm

latissimus dorsi

adducts arms

triceps brachii

extends forearm

biceps brachii

flexes forearm

brachialis

flexes forearm

brachioradialis

flexes forearm

pronator teres

pronates forearm

flexor carpi radialis

flexes hand

palmaris longus

flexes hand

flexor carpi ulnaris

flexes hand

flexor digitorum superficilias

flexes digits

extensor carpi radialis longus

extends hand

extensor carpi ulnaris

extends hand

extensor digitorum

extends digits and hands

supinator

supinates forearm

MUSCLES OF LOWER LIMB

piriformis

abducts and laterally rotates thigh

tensor fascia lata

abducts thigh

gluteus maximus

extends thigh

biceps femoris

extends thigh and flexes leg

semitendinosus

extends thigh and flexes leg

semimembranosis

extends thigh and flexes leg

pectineus

adducts thigh

sartorius

flexes leg

adductor longus

adducts thigh

adductor magnus

adducts and medially rotates thigh

gracilis

flexes leg

rectus femoris

extends leg and flexes thigh

vastus lateralis

extends the leg

vastus medialis

extends leg

vastus intermedius

extends leg

fibularis longus

everts foot

tibialis anterior

dorsiflexes and inverts foot

fibularis longus

everts and plantarflexes foot

extensor digitorum longus

extends toes and dorsiflexes foot

gastrocnemius

plantarflexes foot

soleus

plantarflexes foot