Factors that affect Blood Flow

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 amount of times your heart beats in one minute is your

• blood pressure.

• blood volume.

• blood viscosity.

• heart rate (pulse).

The thickness of your blood is called

• blood pressure.

• blood volume.

• blood viscosity.

• heart rate (pulse).

If your arteries fill with plaque along the inner linings (from high cholesterol), it will

• decrease the size of the passageway for blood.

• increase the size of the passageway for blood.

• not affect the size of the passageway for blood.

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.

Tags

NGSS.HS-LS1-3

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

• drop.

• rise.

• stay the same.

Tags

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.

Tags

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