Factors Affecting Blood Flow Practice

The amount of force placed on the walls of your arteries as your heart pumps (contracts and then relaxes) is called

• blood pressure.

• blood volume.

• blood viscosity.

• heart rate (pulse).

The total amount of blood in your body is called

• blood pressure.

• blood viscosity.

• blood volume.

• heart rate (pulse).

The thickness of your blood is called

• blood pressure.

• blood volume.

• blood viscosity.

• heart rate (pulse).

If your blood vessels become more narrow, like from disease, this will

• increase blood pressure

• decrease blood pressure

• not affect blood pressure.

• change blood volume.

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NGSS.HS-LS1-3

If you were to lose a large amount of blood (blood volume), your blood pressure

• drop.

• rise.

• stay the same.

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NGSS.HS-LS1-3

If you were to become severely dehydrated and your blood plasma levels dropped in your blood, what would most likely happen?

• Your blood viscosity would drop, you would become dizzy and pass out.

• Your blood viscosity would rise which would increase your blood pressure.

• Your blood viscosity would drop which would increase your blood pressure.

• It would not affect your blood pressure.

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NGSS.HS-LS1-3

Which of the following best describes the connection between cardiovascular disease and age?

• As people age, their blood vessels become more elastic leading to less cardiovascular disease.

• As people age, the heart becomes more efficient with each pump, increasing cardiac output.

• As people age, blood pressure decreases leading to more cardiovascular disease.

• As people age, plaque builds up in the arteries increasing vessel resistance, which leads to disease.

Why would you become dizzy if you were to lose a lot blood?

• Your blood volume increased and therefore your blood pressure increased, making you feel dizzy.

• Your blood volume decreased and therefore your blood pressure decreased, making you feel dizzy.

• Your blood volume stayed the same but your blood pressure increased, making you feel dizzy.

• Your blood viscosity decreased and your blood pressure increased, making you feel dizzy.

Tags

NGSS.HS-LS1-3

Flexibility in blood vessels allows the vessels to stretch and move based on changes in Blood Volume. Conditions like Hypertension can cause the arteries to harden and lose their Flexibility.

How would the hardening of the arteries most likely affect Blood Flow?

• The hardening of the arteries would likely cause blood flow to remain constant.

• The hardening of the arteries would likely increase blood flow.

• The hardening of the arteries would likely cause blood flow to stop completely.

• The hardening of the arteries would likely restrict blood flow.

Arteriosclerosis is a disease which clogs arteries in the human body. In arteriosclerosis, artery walls become thick. Fatty deposits build up on inner walls of arteries. This condition reduces the ability of arteries to perform their function. The diagram above shows a comparison between a healthy artery and one with arteriosclerosis. Which of the following explains how Atherosclerosis affects the Body?

• Decreases the circulation of Blood to tissues

• Assembles Amino Acids into Proteins

• Replaces damaged Cells with new Cells

• Breaks down Food particles into Molecules