1. Creatine phospate…

A. Cause the decomposition of ATP

B. Cause the decomposition of ADP

C. Supply energy for the synthesis of ATP

D. Supply energy for the change of ATP to ADP

C

2. The smallest contractile unit of a muscle is:

A.A fiber

B.A myofibril

C.A sacromere

D.A myofilament

C

3. The connective tissue covering of an individual muscle fiber is:

A.Epimysium

B.Periosteum

C.Endomysium

D.Perimysium

C

4. A contraction in which tension in the muscle remains the same, but the length changes is called a:

A.Tonic contraction

B.Isotonic contraction

C.Isometric contraction

D.Convulsion

B

5. A muscle that assists mastication is the:

A.Masseter

B.Zygomaticus

C.Temporalis

D.Both A and C

D

6. Wearing a cast on our biceps for a month would cause:

A.Hypertrophy

B.Atrophy

C.A decrease in fast twitch muscles

D.An increase in fast twitch muscles

B

7. The immovable end of a muscle that connects to a bone is called the:

A.Tendon

B.Insertion

C.Fascia

D.Origin

D

8. Sacromeres are composed mostly of:

A.Myosin and Actin

B.Acetylcholine

C.ATP and ADP

D.Epinephrine

A

9. If a flexor is a prime mover, then what is the antagonist?

A.Extensor

B.Adductors

C.Abductors

D.None of the above

A

10. A muscle cramp is likely due to the build up of __________ in the muscle:

A.Glucose

B.ATP

C.Lactic acid

D.Creatine phosphate

C

11. The outer covering of a muscle fiber, comparable to the cell membrane is called the:

A.Sarcomere

B.Sarcolemma

C.Sarcoplasmic reticulum

D.Myofibril

B

12. What type of muscle contraction occurs after death?

Rigor mortis

13. A hole in the abdominal wall that causes a lump is called a ……

Hernia

14. Identify:

Smooth muscle

15. Label:

15

Masseter