Anatomy & Physiology Lab

Frontalis/Frontal belly of Epicranus*

Raise Eyebrows

Occipitalis/Occipital belly of Epicranius*

pulls scalp posterior

Orbicularis oculi

close eye

Orbicularis Oris

Kiss/whistle

Levator labii superior

open lips

Depressor anguli oris

depresses corners of mouth; frowning

Zygomaticus*

raises corner of mouth; smile/laugh

Masseter

raise mandible

Temporalis

elevate mandible; close jaw

Buccinator

compress cheek; sucking

Platysma

depress mandible, open jaw & lower lip

Sternocleidomastoid*

flex neck, rotate & tilt head

Scalenes

flex neck, lift ribs

Levator scapulae

elevates & adducts scapula, flexes neck

Latissimus dorsi*

extends arm, medial rotation & adducts arm extension

Rhomboid Major

retracts scapula

Erector/extensor spinae*

extends & rotates spine

Trapezius*

extend head; shrug shoulders

Splenius

extend, rotate, tilt head

Pectoralis major*

arm flexion, adduction, & medial rotation

Pectoralis minor

draws scapula forward & inferior

Serratus anterior

rotates scapula to raise & abduct arm; push/punch

External intercostals

Elevates rib cage for inhalation

Internal intercostals

depresses rib cage for forced exhalation.

Rectus abdominus*

flex vertebral column, sit ups

External Oblique

flex & rotate vertebral column

Internal oblique

flex & rotate vertebral column

Transverse abdominus

compress abdomen, defecation/forced ex.

Infraspinatus

laterally rotates humerus; stabilizes shoulder

Supraspinatus

abducts humerus; stabilizes shoulder

Subscapularis

medial rotate humerus

Teres minor

laterally rotates humerus

Deltoid*

arm abduction; swing arm

Triceps brachii*

forearm extensor; dips

Anconeus

extends forearm

Brachialis

flex forearm & supination

Biceps brachii*

flex forearm

Extensor digitorum

extends fingers & abducts hand

Flexor digitorum

flexes fingers & wrist

pronator teres

pronates forearm

Supinator

Supinates forearm

Palmaris longus*

wrist flexion

Tensor fasciae latae

flexes, abduct, medial rotates thigh

Sartorius*

flexes, abducts, laterally rotates thigh; flexes knee; crosses legs

Rectus femoris*

extends knee & flexes thigh at hip

Vastus lateralis

extend knee

Vastus medialis

extends knee

Vastus intermedius

extends knee

Gluteus medius

abduction & medial rotation of thigh; support on one leg

Gluteus maximus*

thigh extensor, lateral rotation, abduction of thigh

Gracilis

adducts thigh, medial rotation, flexes leg

Biceps femoris*

extends thigh, flexes knee, laterally rotates

Semitendinosus

extends thigh, flexes knee, medially rotates

Semimembranosus

extends thigh, flexes knee, medially rotates

Flexor digitorum longus

toe flexion

Tibialis anterior

dorsiflexion & inversion of foot

Tibialis anterior

dorsiflexion & inversion of foot

Tibialis posterior

plantar flexion

Gastrocnemius*

plantar flexes foot, flexes knee

Soleus

plantar flexion

Sphenoid

Coronal Suture

Ethmoid

Frontal

Inferior Orbital Fissure

Lacrimal

Lambdoid Suture

Mandible

Maxilla

Nasal

Occipital Bone

Optical Canal

palatine

Parietal

Sagittal Suture

Sphenoid

Squamous suture

Superior Orbital Fissure

Temporal

Vomer

Vomer

Zygomatic

Mental

Chin

Zygomatic Process

Sphenoid

Mental Foramen

Occipital Condyle

Foramen magnum

Styloid Process

Mastoid Process

External Auditory Meatus

Sella Turcica

Lesser wing

Greater Wing

Cribriform Plates

Crista galli