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PHYSIOLOGY - CHAPTER 5 & 6 REVIEW

Total questions: 15

Worksheet time: 3mins

Name
Class
Date
1.

Where is calcium stored inside a sarcomere?

a)

T-Tubules

b)

Sacroplasmic-Transverse Tubule Complex

c)

Sarcoplasmic Reticulum

d)

H-zones

2.

This is the result of an decrease of negative charge within the cell; thus, making it more positive.

a)

Depolarization

b)

Hyperpolarization

c)

Resting membrane potential

d)

Repolarization

3.

This is the result of an increase of negative charge within the cell; thus, making it more negative than usual.

a)

Depolarization

b)

Hyperplasia

c)

Hypertrophy

d)

Hyperpolarization

4.

The following causes the relaxation of muscles, except:

a)

Attachment of ATP

b)

Decrease in Ca2+ ion concentration

c)

Increase in Acetylcholinesterase

d)

Formation of ADP

5.

Refers to as slowchannels:

a)

Voltage-gated Na+ channels

b)

Voltage-gated K+ channels

c)

Voltage-gated Ca2+ channels

d)

Na+ co-transport with glucose and amino acids

6.

Which of the following structures is referred to as the "capacitor of the neuron" and promotes saltatory transmission?

a)

Myelin sheath

b)

Nodes of Ranvier

c)

Axon hillock

d)

None of the above (NOTA)

7.

This is responsible for the production of myelin sheath in the CNS:

a)

Oligodendrocytes

b)

Schwann cells

c)

Microglia

d)

Astrocytes

8.

Which muscle fibers are used in endurance exercise?

a)

Type I

b)

Type IIB

c)

Type IIA

d)

Type III

9.

Which skeletal muscle fiber is seen among muscles of stability or muscles of the back?

a)

Type I

b)

Type IIB

c)

Type IIA

d)

Type III

10.

Increase in muscle strength is correlated to physiologic changes that occurs after strenuous activities. When will a person notice improvement of their strength?

a)

2 months

b)

5 weeks

c)

1-2 weeks

d)

3-6 days

11.

This muscle is responsible for isometric, eccentric, and concentric contraction.

a)

Agonist

b)

Antagonist

c)

Fixator

d)

Synergist

12.

A good example of isometric contraction:

a)

Cycling through a park

b)

Abdominal (Abs) exercises

c)

Standing on one foot

d)

NOTA

13.

The electrolyte necessary to produce action-potential within a cell or neuron is the influx of ____.

a)

Calcium

b)

Potassium

c)

Sodium

d)

Oxygen

14.

The ion necessary to produce muscle contraction is ___.

a)

Sodium

b)

Calcium

c)

ATP

d)

Potassium

15.

What muscle is this?

a)

Serratus anterior

b)

External Oblique

c)

Pectoralis major (Abdominal fibers)

d)

Transversus abdominis