CH 7 NCLEX QS

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

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

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

Motor unit

8.The three functions of the skeletal system are __________, __________, and __________.

Movement , posture , heat production

1.__________ is another name for muscle cell.

Muscle fiber

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

Myosin

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

Origin

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

Sacromere

20._____ A __temporal muscle 21._____ B__biceps brachii 22._____ D__sartorius 23._____ D__gastrocnemius 24._____ A___masseter 25._____ C or B ___pectoralis major 26._____ C___external oblique 27._____ D___gluteus maximus 28._____ A___sternocleidomastoid 29._____ C__rectus abdominis 30._____ D___rectus femoris 31._____ B___triceps brachii

a.muscles of the head or neck b.muscles that move the upper extremity c.muscles of the trunk d.muscles that move the lower extremity

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

Heart

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

D

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

Extension

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