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Flashcards in PT Test Deck (20):
1

What is the function of the tricuspid valve?

Prevents backflow of blood to the right atrium.

2

What is the fundamental unit of muscle contraction?

Sarcomere

3

Which chamber of the heart is responsible for pumping oxygenated blood to the body?

Left ventricle

4

What is the natural curve in the lumbar region of the spine?

Lordotic curve

5

Adenosine triphosphate production via "anaerobic" glycolysis is associated with the significant
formation of what by-product?

Lactic Acid

6

The changes in muscle size associated with long-term resistance training is most likely due to
increases in _____.

muscle fiber cross-sectional diameter

7

Downhill walking/jogging/running is characterized by eccentric activation of which of the following
muscle groups?

Quadriceps femoris

8

What is the typical resting blood pressure response to long term aerobic exercise in a
hypertensive individual?

Both systolic and diastolic pressures will decrease.

9

How does heart rate increase in relation to work rate and oxygen uptake during dynamic exercise?

Linearly

10

Which cardiovascular training approach, if repeated frequently, is most likely going to lead to
overtraining?

Two consecutive intensive days, followed by one easy day

11

What feature is unique to skeletal muscle as compared to cardiac muscle?

Requires nervous system stimulation

12

What is the correct path of blood flow through the chambers of the heart?

Right atrium; right ventricle; left atrium; left ventricle

13

What respiratory muscles can cause forceful expiration?

Internal intercostals

14

Which of the following occurs when walking or running up an incline?

Greater flexibility of the soleus

15

What two muscles, along with the supraspinatus and infraspinatus, make up the rotator cuff?

Teres minor and subscapularis

16

What muscle action will most likely induce delayed onset muscle soreness?

Eccentric

17

What occurs to a muscle during the eccentric movement phase of an exercise?

Lengthens while contracting

18

What is the primary muscle group involved in trunk flexion while standing during the eccentric
phase of the movement?

Erector Spinae

19

What muscle extends the forearm?

Triceps brachii

20

What is the term used to describe the body's ability to utilize oxygen during exercise?

Oxygen consumption