Unit Test — Unit test Answers

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The cardiovascular system helps move hormones throughout the body during exercise.

A
T
B
F
2
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What is the impact of arteriosclerosis?

A
inefficient blood flow
B
increased artery elasticity
C
arterial plaque deposition
D
reduced blood clotting
3

When it comes to cholesterol, it is better to have __________.

A
more cholesterol
B
more LDL
C
a high ratio of LDL to HDL
D
more HDL
4

Which of the following BEST describes what alveoli are?

A
They are the smallest tubes in the respiratory system.
B
They have a small amount of surface area.
C
They are found on the end of bronchioles.
D
They are comprised of millions of cells.
5

Which of the following is NOT a symptom of a stroke?

A
Trouble walking or speaking
B
Paralysis on one side of the body
C
Numbness on one side of the body
D
Paralysis or numbness in both sides of the body
6

What distinguishes high blood pressure from conditions such as arteriosclerosis and atherosclerosis?

A
Arteriosclerosis and atherosclerosis can't be treated with medication.
B
High blood pressure is identified by chest pain.
C
High blood pressure can't be treated with medication.
D
High blood pressure doesn't always have symptoms.
7

Hypertension is called "the silent killer" because __________.

A
it kills people while they sleep
B
there is no treatment for it
C
it generally has no symptoms
D
if affects the voice box first
8

In the human body, the larynx is attached to the trachea.

A
T
B
F
9

The aorta carries blood out of the heart to the rest of the body. Please select the best answer from the choices provided.

A
T
B
F
10

High blood pressure, also called hypertension, is a type of cardiovascular disease. Please select the best answer from the choices provided.

A
T
B
F
11

Optimal cardiorespiratory fitness requires a BMI of __________.

A
18.5 to 24.9
B
25.0 to 29.9
C
30.0 to 39.9
D
40.0 to 49.9
12

Each lung is fed oxygen by a separate bronchus.

A
T
B
F
13

How is blood pressure in the body affected by exercise?

A
systolic pressure increases, diastolic pressure decreases
B
systolic pressure decreases, diastolic pressure remains constant
C
systolic pressure increases, diastolic pressure remains constant
D
systolic pressure remains constant, diastolic pressure increases
14

Female gains in body fat starting around puberty can result in a cycle of diminished physical fitness.

A
T
B
F
15

Once entering the nose, air moves through both the pharynx and larynx.

A
T
B
F
16

The human cardiovascular system is considered closed because __________.

A
blood is continuously circulated in the body.
B
blood provides nutrients to organs.
C
blood collects oxygen from the lungs
D
there are no holes for blood to enter or leave the system
17

What distinguishes atherosclerosis from arteriosclerosis?

A
Arteriosclerosis can lead to blood clots.
B
Atherosclerosis is characterized by plaque buildup.
C
Arteriosclerosis results in inefficient blood flow.
D
Atherosclerosis is a general term for artery hardening.
18

Increasing cardiorespiratory fitness levels is difficult for experienced athletes because __________.

A
they are not motivated to increase their levels of cardiorespiratory fitness
B
they cannot commit the training time to increase their cardiorespiratory fitness
C
they have already achieved high levels of cardiorespiratory fitness
D
none of the above
19

High levels of cholesterol can first lead directly to __________.

A
strokes
B
arteriosclerosis
C
heart attacks
D
heart failure
20

The most important step for preventing cardiovascular disease is to live a healthy lifestyle.

A
T
B
F

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