ch 8 - muscular system ch test

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

9. The molecule ________ supplies energy for muscle contraction.

ATP

15. ________ is a term describing movement of a body part away from the midline of the body.

abduction

5. ________ is the protein that makes up the thin myofilaments.

actin

18. Skeletal muscles can also be called: a. visceral muscles b. voluntary muscles c. cardiac muscles d. all of the above

b

16. ________ is a term used to describe the movement that is the opposite of flexion

extension

2. Cardiac muscle makes up the bulk of the tissue of the ________.

heart

3. The muscle attachment to the more movable bone is called the ________.

insertion

14. ________ is a type of muscle contraction that does not produce movement and does not allow the muscle to shorten but does increase muscle tension.

isometric

13. ________ is a type of muscle contraction that produces movement in a joint and allows the muscle to shorten.

isotonic

10. ________ is the waste product produced when the muscle must switch to an energy supplying process that does not require oxygen.

lactic acid

22.________ sartorius

muscles that move the lower extremity

23.________ gastrocnemius

muscles that move the lower extremity

27.________ gluteus maximus

muscles that move the lower extremity

30.________ rectus femoris

muscles that move the lower extremity

21.________ biceps brachii

muscles that move the upper extremity

31.________ triceps brachii

muscles that move the upper extremity

6. ________ is the protein that makes up the thick myofilaments.

myosin

4. The muscle attachment to the more stationary bone is called the ________.

origin

19. Smooth muscles can also be called: a. visceral muscles b. involuntary muscles c. nonstriated muscles d. all of the above

d

11. A single motor neuron with all the muscle fibers it innervates is called a ________.

motor unit

8. The three functions of the muscular system are ________, ________, and ________.

movement, posture, heat production

1. ________ is another name for muscle cell.

muscle fiber

20. ​________ temporal muscle

muscles of the head or neck

24.________ masseter

muscles of the head or neck

28.________ sternocleidomastoid

muscles of the head or neck

26.________ external oblique

muscles of the trunk

29.________ rectus abdominis

muscles of the trunk

25.________ pectoralis major

muscles of the trunk or muscles that move the upper extremity

7. The ________ is the basic functional unit of contraction in a skeletal muscle.

sarcomere

17. ________ describes the hand position when the body is in anatomical position.

supination

12. ________ is the minimal level of stimulation required to cause a muscle fiber to contract.

threshold stimulus


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