What is the characteristic thickness of capillary walls?

Composed of multiple cell layers

Why do veins have a larger diameter than arteries?

To have a larger holding capacity

To reduce blood flow resistance

What is the primary function of arteries and arterioles as described in the text?

To take blood away from the heart

What does the middle layer of an artery wall consist of, and what is its function?

Smooth muscle, to constrict and regulate blood flow and pressure

Collagen fibers, to provide elasticity

Nerve fibers, to transmit signals

What is the primary function of the walls of capillaries being only one-cell thick?

To allow exchange of gases and nutrients with tissue fluid

To support the structure of larger blood vessels

What is the primary function of veins as described in the image?

To drain blood from capillaries and transport it to the heart

What should be measured in groups of three using specific equipment as part of the acute responses to exercise?

Heart Rate, Muscle Density, and Blood Pressure

When should the data be recorded in relation to the exercise?

Both before and after the exercise

What is one of the acute responses of the cardiovascular system to exercise?

Decrease in blood re-distribution

Which response is associated with the heart rate due to anticipation of exercise?

Heart rate anticipatory response

How does the ventricle wall change as a result of regular exercise?

The ventricle wall gets larger or thickens

The ventricle wall decreases in thickness

The ventricle wall remains the same

The ventricle wall becomes less efficient

Which of the following is NOT a chronic response to exercise?

Increase in maximal cardiac output

What adaptation occurs in the cardiovascular system regarding the blood vessels due to chronic exercise?

Arteries, arterioles, and capillaries adapt in structure and number

Reduction in number of capillaries

Decrease in flexibility of arteries

What is the definition of Stroke Volume in the context of cardiovascular physiology?

The volume of blood ejected from the ventricles in each contraction

The amount of blood pumped by the heart in one minute

The rate at which the heart beats per minute

The pressure exerted by the blood on the walls of the arteries

What happens to the stroke volume when the muscle wall of the left ventricle increases in size?

There is no change in the stroke volume

What is the formula for calculating Cardiac Output?

Cardiac Output = Stroke Volume x Heart Rate

Cardiac Output = Heart Rate + Stroke Volume

Cardiac Output = Stroke Volume / Heart Rate

Cardiac Output = Heart Rate / Stroke Volume

What happens to stroke volume and heart rate during exercise?

Stroke volume decreases, heart rate increases

Stroke volume increases, heart rate decreases

What is capillarisation?

The formation of new capillaries, particularly at the alveoli in the lungs and skeletal muscle

The process where old capillaries are replaced by new ones

The expansion of existing veins to increase blood flow

The reduction of blood flow to certain areas of the body

Where does capillarisation primarily take place?

At the alveoli in the lungs and skeletal muscle

Throughout the digestive system

What is the primary benefit of capillarisation in the muscles?

It increases the amount of carbon dioxide that can be removed from the muscles

It decreases the amount of oxygen reaching the muscles

It reduces the efficiency of muscle contractions

It limits the blood supply to the muscles

What is the result of increased red blood cells in the body during exercise?

Increased ability to carry oxygen to working muscles

Decreased ability to carry oxygen to working muscles

No change in oxygen transport to muscles

What is the effect of regular exercise on the strength of your heart?

Increases the strength of the heart

Decreases the strength of the heart

How does a stronger heart contribute to blood circulation?

Pumps more blood with less effort

Requires more effort to pump blood

Pumps less blood with more effort

What is meant by "heart rate recovery" as mentioned in the context of physical exercise?

The decrease of heart rate at 1 minute after exercise

The increase of heart rate during exercise

The stabilization of heart rate hours after exercise

The constant heart rate maintained during exercise

Cardiovascular System Quiz

45 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the function of the Aortic Valve in the human heart?

To prevent backflow of blood into the left atrium

To prevent backflow of blood into the left ventricle

To regulate blood flow from the heart to the lungs

To regulate blood flow from the heart to the rest of the body

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which chamber of the heart receives oxygen-rich blood from the lungs?

Left Atrium

Right Atrium

Left Ventricle

Right Ventricle

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Identify the vessel that carries oxygen-poor blood from the lower body to the heart.

Pulmonary Artery

Aorta

Superior Vena Cava

Inferior Vena Cava

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of the Pulmonary Artery in the circulatory system?

It carries oxygen-rich blood to the body.

It carries oxygen-poor blood to the lungs.

It carries oxygen-rich blood to the heart.

It carries nutrients to the heart.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Identify the valve that is located between the right atrium and right ventricle.

Mitral Valve

Aortic Valve

Tricuspid Valve

Pulmonary Valve

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of arteries in the circulatory system?

To carry blood toward the heart

To carry blood away from the heart

To facilitate nutrient absorption

To produce blood cells

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where does the exchange of nutrients and gases primarily occur within the blood vessels?

Arteries

Veins

Capillaries

Heart

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Cardiovascular System

What is the function of the Aortic Valve in the human heart?

Which chamber of the heart receives oxygen-rich blood from the lungs?

Identify the vessel that carries oxygen-poor blood from the lower body to the heart.

What is the role of the Pulmonary Artery in the circulatory system?

Identify the valve that is located between the right atrium and right ventricle.

What is the primary function of arteries in the circulatory system?

Where does the exchange of nutrients and gases primarily occur within the blood vessels?

Which type of blood vessel is responsible for carrying blood back toward the heart?

Which type of blood vessel has a thicker wall and a larger middle layer compared to the other?

What is the characteristic thickness of capillary walls?

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