AnswersBiology - SC3209 ICThe Cardiovascular System

The Cardiovascular System Answers

0 verified answers
1
Free Preview

Why do capillaries need to be thin walled?

A
so only a few nutrients can pass through
B
so only a small amount of blood can flow through
C
so they can go through the small spaces within the body
D
so the exchange of gases and nutrients can happen
2
Free Preview

What might be a symptom of a person whose vein valves are not functioning properly and are causing fluid to flow away from the heart?

A
fever
B
constricted veins
C
swollen veins
D
confusion
3

Which best describes arteries and veins?

A
Both have valves.
B
Both are thick, muscular, and elastic.
C
Arteries carry blood back to the heart; veins connect arteries and capillaries.
D
Arteries carry blood away from the heart; veins carry blood back to the heart.
4

Which structure(s) carries blood to the heart so the heart has its own supply of oxygen and nutrients to perform its function?

A
pulmonary artery
B
coronary arteries
C
superior vena cava
D
inferior vena cava
5

In the past, an irregular heart rhythm was treated by using a drug to help regulate the beat. There is a treatment that can also regulate heart rhythms that has replaced drugs in some cases. What is that treatment?

A
pacemaker
B
angioplasty
C
clot-dissolving drugs
D
myocardial infarction
6

The respiratory system allows for gas exchange to happen in the lungs. How do the respiratory and cardiovascular systems interact?

A
The respiratory system supplies the carbon dioxide that the cardiovascular system transports to the different cells for the production of energy.
B
The respiratory system supplies the oxygen that the cardiovascular system transports to the different cells for the production of energy.
C
The cardiovascular system supplies the carbon dioxide that the respiratory system transports to the different cells for the production of energy.
D
The cardiovascular system supplies the oxygen that the respiratory system transports to the different cells for the production of energy.
7

Which components make up the cardiovascular system?

A
lungs, heart, and blood vessels
B
heart, blood vessels, and blood
C
heart, blood, and lungs
D
lungs, heart, and skin
8

Which describes how blood can be protective in nature?

A
by forming a protective layer within blood vessels
B
by carrying cells that defend the body from foreign materials
C
by secreting oil that destroys foreign materials
D
by producing acid that kills foreign materials
9

Why do arteries need to be thick, muscular, and elastic?

A
to make our bodies strong for movement
B
to withstand the pressure of blood being pumped by the heart
C
to pull the blood back to the heart from all areas of the body
D
to withstand changes in blood temperature
10

Which best describes the pericardium?

A
structures inside the heart that ensure that blood flows in one direction only
B
a sac around the heart that allows the heart muscle to receive oxygen
C
a sac around the heart that protects the heart and chest tissues
D
structures inside the heart that bring blood to the lungs for oxygenation

Did you find these answers helpful?

More from this Course

Quiz
10 verified answers

The Cardiovascular System

Quiz
10 verified answers

Blood

Quiz
10 verified answers

The Respiratory System