Lab 2: Gross Anatomy of the Muscular System Worksheet Diagram | Quizlet

TERM

Frontal Belly

DEFINITION

used to pout (pulls the corners of the mouth downward)

TERM

Temporalis

DEFINITION

elevates and retracts mandible

TERM

Orbicularis Oculi

DEFINITION

used in blinking and squinting

TERM

Zygomaticus

DEFINITION

used to grin

TERM

Orbicularis Oris

DEFINITION

Your Kissing Muscle

TERM

Platysma

DEFINITION

used to pout (pulls the corners of the mouth downward)

TERM

Masseter

DEFINITION

Allows you to "bite"

TERM

Occipital Belly

DEFINITION

pulls scalp posteriorly

TERM

Buccinator

DEFINITION

Compresses cheek (as in whistling); holds food between teeth during chewing

TERM

Rectus abdominis

DEFINITION

major spine flexor

TERM

Latissimus Dorsi

DEFINITION

prime mover for pulling the arm posteriorly

TERM

Orbicularis Oris

DEFINITION

closes and protrudes lips kissing muscle

TERM

Pectoralis Major

DEFINITION

Adducts and flexes humerus

TERM

external oblique

DEFINITION

Compresses abdomen; laterally flexes and rotates vertebral column

TERM

sternocleidomastoid

DEFINITION

Contraction of one side: laterally flexes neck, rotates head to opposite side; Contraction of both sides together: flexes neck

TERM

biceps brachii

DEFINITION

forearm extender (flexes and supinates)

TERM

deltoid

DEFINITION

abducts arm

TERM

vastus lateralis

DEFINITION

extends leg at knee

TERM

Frontal Belly

DEFINITION

raises eyebrows, wrinkles forehead

TERM

rectus femoris

DEFINITION

extends leg at knee

TERM

sartorius

DEFINITION

Flexes, abducts, and laterally rotates thigh at the hip; flexes knee

TERM

platysma

DEFINITION

tenses skin of neck

TERM

flexor carpi radialis

DEFINITION

flexes and abducts hand at wrist

TERM

Orbicularis Oculi

DEFINITION

Closes eyelids; used in blinking, winking, and squinting

TERM

gastrocnemius

DEFINITION

Calf muscle

TERM

Masseter

DEFINITION

elevates mandible

TERM

trapezius

DEFINITION

Elevates, depresses, retracts, and rotates the scapula; rotates the arm

TERM

tibialis anterior

DEFINITION

dorsiflexes and inverts foot

TERM

adductors

DEFINITION

muscle group that allows you to draw your legs to the midline of your body, as when standing at attention

TERM

vastus medialis

DEFINITION

extends knee

TERM

transversus abdominis

DEFINITION

compresses abdominal contents

TERM

brachioradialis

DEFINITION

flexes forearm at elbow

TERM

temporalis

DEFINITION

elevates and retracts mandible

TERM

zygomaticus

DEFINITION

raises corner of mouth smiling muscle

TERM

triceps brachii

DEFINITION

extends forearm at elbow

TERM

gracilis

DEFINITION

adducts thigh, flexes and medially rotates leg

TERM

extensor digitorum longus

DEFINITION

extends toes and dorsiflexes foot

TERM

tensor fasciae late

DEFINITION

-flex hip

- medially rotate hip

-laterally supports the knee

-inserts into the iliotibial tract on the lateral side of the thigh

TERM

soleus

DEFINITION

plantar flexion of foot

TERM

iliopsoas

DEFINITION

hip flexion

TERM

gluteus maximus

DEFINITION

extends thigh (butt)

TERM

semimembranosus

DEFINITION

Flexes leg at the knee and extends thigh at the hip; belongs to the hamstring group

TERM

gastrocnemius

DEFINITION

Calf muscle

TERM

deltoid

DEFINITION

prime mover of arm abduction

TERM

semitendinosus

DEFINITION

Flexes leg at the knee and extends thigh at the hip; belongs to the hamstring group

TERM

trapezius

DEFINITION

Elevates, depresses, retracts, and rotates the scapula; rotates the arm

TERM

biceps femoris

DEFINITION

flexes leg and extends thigh

TERM

triceps brachii

DEFINITION

extends forearm at elbow

TERM

flexor carpi ulnaris

DEFINITION

flexes wrist and adducts hand

TERM

extensor carpi ulnaris

DEFINITION

extends wrist and adducts hand

TERM

extensor digitorum

DEFINITION

prime mover of finger extension

TERM

extensor carpi radialis longus

DEFINITION

Extends wrist and abducts hand

TERM

sternocleidomastoid

DEFINITION

Contraction of one side: laterally flexes neck, rotates head to opposite side; Contraction of both sides together: flexes neck

TERM

adductor magnus

DEFINITION

hip adduction

TERM

iliotibial tract (tendon)

DEFINITION

IT band

TERM

external oblique

DEFINITION

Compresses abdomen; laterally flexes and rotates vertebral column

TERM

gluteus medius

DEFINITION

abducts and medially rotates thigh

The insertion of what group of muscles contains a large sesamoid bone, the patella?

Quadriceps