BIO144L Fetal Pig Dissection - Muscle Functions

The functions of fetal pig muscles

Masseter

moves mandible upward; involved in chewing

Sternohyoid

moves tongue

Mylohyoid

raises floor of mouth

Brachiocephalicus

moves forelimbs toward head

Sternomastoid

flexes the head

Pectoralis

moves forelimb toward body

Deltoid

flexes shoulder, moves forelimb away from body

Triceps

extends forelimb

Extensor carpi radialis

extends wrist

Flexor carpi radialis

flexes wrist and digits

Biceps

flexes the forelimb

External obliques

compresses abdomen; flexes trunk

Trapezius

moves scapula

Gluteus medius

abducts and extends thigh

Biceps femoris

abducts thigh; flexes hindlimb

Rectus femoris

extends hindlimb, moves thigh forward

Tensor fasciae latae

extends hindlimb

Semimembranosus

adducts hindlimb