Chapter 14 Muscles of Head, Neck and Back

Human Anatomy

Name the muscle fiber?

A. endomysium

B. myofibril

C. t tubule (transverse tubule)

D. cisterna of sarcoplasmic reticulum

E. motor end plate

F. synaptic knob with synaptic vesicles

G. sarcolemma

Name the sarcomere model?

A. M line

B. thick filament

C. A band

D. sarcomere

E. Z line (disk)

F. I band

G. thin filament

H. H zone

Think filaments are made of the protein ____________________

myosin

Thin filaments are made of the protein __________ (small, red spheres) and _________ (the yellow proteins), and ______________ (the green proteins).

1.Actin

2.Tropomyosin

3.Troponin

The dark lines in muscle striations are called ___________ bands

A band

The light lines in muscle striations are called _________bands

I band

True or False: When the sarcomere shortens, the H zone also shortens

True

True or False: When the sarcomere shortens, the I band also shortens

True

True or False: When the sarcomere shortens, the A band also shortens

False

Match the letter from the picture below with the appropriate muscle.

A. platysma

B. orbicularis oculi

C. zygomaticus

D. frontalis belly of epicranius

E. orbicularis oris

F. buccinator

G. sternocleidomastoid

Match the letter from the picture below with the appropriate muscle.

A. temporalis

B. occipitalis belly of epicranius

C. masseter

D. platysma

E. sternocleidomastoid

F. splenius capitis

G. frontalis belly of epicranius

H. buccinator

I. orbicularis oculi

J. zygomaticus

K. orbicularis oris

Match the letter from the picture below with the appropriate muscle.

A. sternocleidomastoid

B. splenius capitis

C. temporalis

D. masseter (cut)

Match the letter with the appropriate muscle.

A. sternocleidomastoid

B. orbicularis oculi

C. orbicularis oris

D. buccinator

E. masseter

F. zygomaticus

G. frontalis belly of epicranius

H. temporalis

Match the letter in the picture below with the appropriate muscle.

A. erector spinae

B. occipitalis belly of epicranius

C. splenius capitis

Name the correct muscle: Compresses cheeks so you may blow air from your mouth or suck liquid through a straw

buccinator

Name the correct muscle: closes lips and shapes lips as during speech

orbicularis oris

Name the correct muscle: rotates head, laterally flexes neck when one contracts and extends neck when both contract

splenius capitis

Name the correct muscle: is the main muscle used for chewing because it elevates and protracts mandible

masseter

Name the correct muscle: assists the masseter in chewing because it elevates and retracts mandible as in closing the mouth and pulling the jaw in under the upper jaw

temporalis

Name the correct muscle: elevates eyebrows and furrows the brow (wrinkles the forehead)

epicranius (frontalis and occipitalis)

Name the correct muscle: elevates corner of mouth for smiling

zygomaticus

Name the correct muscle: depresses lower lip and angle of mouth

platysma

Name the correct muscle: is the main muscle used to laterally flex the neck to the same side, rotate head to the opposite side, and flex neck when both contracts. Also aids in forceful inhalation

sternocleidomastoid