quiz questions

Question 1

What type of muscle is found surrounding the small intestine?

Answer 1

smooth

Question 2

What structure stores Ca2+ in the muscle cell?

Answer 2

Sarcoplasmic reticulum

Question 3

Ca2+ binds to which protein in order to start a muscle contraction?

Answer 3

Troponin

Question 4

Which muscle fibers would you use during a short, high intensity endurance event (1,600 m run)?

Answer 4

Type IIa

Question 5

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

Answer 5

Right atrium, right ventricle, left atrium, left ventricle

Question 6

Which of the following slows down the conduction signal in the heart?

Answer 6

AV node

Question 7

Which of the following is a measure of the total volume of blood pumped per minute?

Answer 7

Cardiac Output

Question 8

Where does gas exchange take place in the lungs?

Answer 8

Alveoli

Question 9

Which way does the diaphragm move when you inhale?

Answer 9

Inferiorly

Question 10

Which of the following is a measure of the total volume of air you can voluntarily inhale and exhale?

Answer 10

Vital capacity

Question 11

For a fixed intensity, what happens to heart rate after training?

Answer 11

Decrease

Question 12

At a fixed intensity, what happens to cardiac output after training?

Answer 12

Remain the same

Question 13

What happens to the number of capillaries in a muscle with training?

Answer 13

Increase

Question 14

Generally speaking, what shift in muscle fiber type do you see with training?

Answer 14

Type II to type I

Question 15

Which of the following best describes fat as a metabolic substrate?

Answer 15

High energy density, slow energy

Question 16

What metabolic pathway are you most likely to use primarily when running the 400m?

Answer 16

Glycolysis

Question 17

Which of the following systems produces the most ATP?

Answer 17

Oxidative

Question 18

If I measure the number of times you can list a 15 lb weight (well below your 1 RM), what am I measuring?

Answer 18

Muscular endurance

Question 19

The idea that you need to continue to train at some level in order to maintain the gains you have achieved with training is due to the principle of:

Answer 19

Reversability

Question 20

The idea that you need to continue to increase the demand on the body in order to achieve gains is due to the principle of:

Answer 20

Progressive overload

Question 21

Primary muscle used in respiration

Answer 21

diaphragm

Question 22

the measure of the maximum amount of volume of air you can voluntarily move during regular breathing

Answer 22

tidal volume

Question 23

stroke volume with training

Answer 23

increase

Question 24

resting HR with training

Answer 24

decrease

Question 25

myoglobin with training

Answer 25

increase

Question 26

least used substrate

Answer 26

protein

Question 27

substrate is the most energy dense

Answer 27

fat

Question 28

metabolic pathway during a marathon

Answer 28

oxidative

Question 29

where does oxidative system occur

Answer 29

mitochondria

Question 30

if there is oxygen present, what happens to the pyruvate created during glycolysis

Answer 30

it converts to Acetyl CoA

Question 31

structure carries AP deeper into muscle fiber

Answer 31

T-tubules

Question 32

fiber type produces fastest contractions

Answer 32

IIx

Question 33

measure of the volume of blood pumped out of the left ventricle

Answer 33

stroke volume

Question 34

cardiac output measure of

Answer 34

amount of blood pumped per minute