Question 1

Which of the following muscles is the prime mover in spitting out a mouthful of liquid?

Accepted Answer

buccinator

Question 2

Each muscle fiber has a sleeve of areolar connective tissue around it called

Accepted Answer

the endomysium

Question 3

Which of these is not a suprahyoid muscle?

Accepted Answer

genioglossus

Question 4

Which of these muscles is an extensor of the neck?

Accepted Answer

splenius capitis

Question 5

Which of these muscles of the pelvic floor is the deepest?

Accepted Answer

levator ani

Question 6

Which of these actions is not performed by the trapezius?

Accepted Answer

adduction of the humerus

Question 7

Both the hands and feet are acted upon by a muscle or muscles called

Accepted Answer

the abductor digiti minimi

Question 8

Which of the following muscles does not extend the hip joint?

Accepted Answer

quadriceps femoris

Question 9

Both the gastrocnemius and ___________ muscles insert on the heel by way of the calcaneal tendon.

Accepted Answer

soleus

Question 10

Which of the following muscles raises the upper lip?

Accepted Answer

zygomaticus minor

Question 11

The __________ of a muscle is the point where it attaches to a relatively stationary bone.

Accepted Answer

origin

Question 12

A bundle of muscle fibers surrounded by perimysium is called a/an ____________

Accepted Answer

fascicle

Question 13

The ___________ is the muscle primarily responsible for a given movement at a joint.

Accepted Answer

agonist (prime mover)

Question 14

The three large muscles on the posterior side of the thigh are commonly known as the ________ muscles.

Accepted Answer

hamstring

Question 15

Connective tissue bands called _________ prevent flexor tendons from rising like bowstrings.

Accepted Answer

flexor retinacula

Question 16

The anterior half of the perineum is a region called the __________.

Accepted Answer

urogenital triangle

Question 17

The abdominal aponeuroses converge on a median fibrous band on the abdomen called the ___________.

Accepted Answer

linea alba

Question 18

A muscle that works with another to produce the same of similar movement is called a/an _____________.

Accepted Answer

synergist

Question 19

a muscle that has fibers obliquely approaching its tendon from both sides is called a/an _____________ muscle

Accepted Answer

bipennate-A muscle somewhat like a feather

Question 20

A circular muscle that closes a body opening is called a/an ____________.

Accepted Answer

sphincter

Question 21

Cutting the phrenic nerves would paralzye the

Accepted Answer

prime mover of respiration.

Question 22

The orbicularis occuli and orbicularis oris are

Accepted Answer

sphincters.

Question 23

The origin of the sternocleidomastoid muscle is the

Accepted Answer

the clavicle and manubrium

Question 24

To push someone away from you

Accepted Answer

you would use the serratus anterior more than the trapezius.

Question 25

Both the extensor digitorum and the extensor digiti minimi

Accepted Answer

extend the little finger.

Question 26

Curling the toes employs the

Accepted Answer

quadratus plantae.

Question 27

The trapezius is superficial to:

Accepted Answer

the scalenes.

Question 28

Normal exhaling requires contraction of the

Accepted Answer

inspiratory muscles

Question 29

Hamstring injuries often result from

Accepted Answer

rapid extention of the knee

Question 30

The tibialis anterior and tibialis posterior are:

Accepted Answer

antagonists.

Question 31

Radical mastectomy, once a common treatment for breast cancer, involved removal of the pectoralis major along with the breast. What functional impairment would result from this? What synergists could a physical therapist train a patient to use to recover some lost function?

Accepted Answer

Because the pectoralis major flexes the shoulder, adducts and rotates the humerus, and depresses the pectoral girdle, its absence would make such actions as climbing, pushing, throwing, and adducting the arm (as in reaching across to the other side of the chest) difficult. Some synergists that could partially take over these functions include the latissimus dorsi, teres major and minor, coracobrachialis, subscapularis, and anterior portion of the deltoid.

Question 32

Removal of cancerous lymph nodes from the neck sometimes requires removal of the sternocleidomastoid on that side. How would this affect a patient\'s range of head movements?

Accepted Answer

If the left sternocleidomastoid were removed, for example, it would make it more difficult to bow the head and look downward toward the right.

Question 33

In a disease called tick paralysis the saliva from a tick bite paralyzes skeletal muscles beginning with the lower limbs and progressing superiorly. What would be the most urgent threat to the life of a tick paralysis patient?

Accepted Answer

Tick paralysis presents a threat of suffocation if it affects the respiratory muscles of the chest. (Entire herds of cattle have been killed by tick-induced respiratory paralysis.)

Question 34

Women who habitually wear high heels may suffer painful \"high heel syndrome\" when they go barefoot or wear flat shoes. What muscle(s) and tendon(s) are involved?

Accepted Answer

The gastrocnemius and soleus muscles and the calcaneal tendon are affected because they are more stretched when a person walks flat-footed than when one walks in high heels.

Question 35

A student moving out of a dormitory kneels down in correct fashion, to lift a heavy box of books. What prime moves are involved as he straightens his legs to lift the box?

Accepted Answer

In heavy lifting of this sort, the quadriceps femoris and gluteus maximums produce most of the force in extending the knee and hip, respectively.

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