Anatomy Chapter 7

Question 1

Which muscle can be found in the abdomen?

Answer 1

External oblique

Question 2

What structure in cardiac muscle allows the muscle fibers to stimulate a wave of contraction?

Answer 2

Intercalated discs

Question 3

What molecule allows cross-bridges between myosin and actin to break and re-form?

Answer 3

Adenosine triphosphate

Question 4

When flexing the knee joint, what muscle group is relaxed?

Answer 4

Quadriceps femoris

Question 5

What muscle crosses over the front of the thigh?

Answer 5

Sartorius

Question 6

The muscle that is used to straighten a joint is called the _________.

Answer 6

extensor muscle

Question 7

A patient was in traction after a severe injury. This required the patient to be on bedrest and immobile. What would you expect to happen to the patient’s muscles?

Answer 7

Atrophy

Question 8

Where is the semitendinosus muscle found?

Answer 8

In the hamstrings

Question 9

A patient’s blood vessels suddenly dilated. What effect would this have on the patient’s blood pressure?

Answer 9

The blood pressure would decrease.

Question 10

What skeletal muscle is both voluntary and involuntary?

Answer 10

Diaphragm

Question 11

What muscle action is associated with the gastrocnemius?

Answer 11

It plantar flexes the foot.

Question 12

A bundle of muscle fibers is called a _________.

Answer 12

fascicle

Question 13

What is the cause of rigor mortis?

Answer 13

Calcium remains in the muscle, causing muscle contraction.

Question 14

Which muscle surrounds the eye?

Answer 14

Orbicularis oculi

Question 15

The end of the muscle that is attached to the stationary bone is called the _________.

Answer 15

point of origin

Question 16

Smooth muscle can be found in what location?

Answer 16

Blood vessels

Question 17

Thick myofilaments are made up of _________.

Answer 17

myosin

Question 18

What makes a muscle darker in color?

Answer 18

Richer blood supply

Question 19

The muscle that causes a movement is called the _________.

Answer 19

primary mover

Question 20

In muscle contraction, acetylcholine binds to specialized areas on the sarcolemma to allow which ion to enter the cell?

Answer 20

Sodium

Question 21

A patient complains of pain in the shoulder muscle. The injured muscle is likely the _________.

Answer 21

deltoid

Question 22

Which muscles can be categorized as voluntary muscles?

Answer 22

Skeletal

Question 23

A patient visits the medical clinic because he has trouble walking due to lack of coordination of the muscles in the legs. The medical term for this is _________.

Answer 23

ataxia

Question 24

A specialist who studies movement and can perform therapeutic movement for a patient is called a _________.

Answer 24

kinesiologist

Question 25

What is the muscle insertion for the masseter?

Answer 25

Mandible

Question 26

In order to produce energy, muscles can convert glycogen to _________.

Answer 26

glucose

Question 27

What is the term for fibrous tissues that attach skeletal muscle to bones?

Answer 27

Tendons

Question 28

A patient has been diagnosed with myasthenia gravis. What can the patient expect as the disease progresses?

Answer 28

Progressive paralysis

Question 29

What property of muscles allows them to return to their original resting length after being stretched?

Answer 29

Elasticity

Question 30

What is one function of occupational therapists?

Answer 30

To help clients be able to perform activities of daily living