Circulatory Systems Flashcards

1
Q

What are the functions of the circulatory system?

A

Transports oxygen and carbon dioxide to and from cells.
Transports nutrients and removes waste.
Transports chemical messages.
Transports heat around body.
Transports factors involved in immunity.
Homeostasis- maintaining a constant internal environment.

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2
Q

Which 2 steps of gas exchange concern the circulatory system?

A

Circulation

Cellular respiration

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3
Q

What are the three main type of blood vessels?

A

Arteries
Capillaries
Veins

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4
Q

Which blood vessel takes blood away from the heart under high pressure?

A

Arteries

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5
Q

Which blood vessel returns blood to the heart under low pressure?

A

Veins

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6
Q

Which blood vessel allows gases and molecules to exchange with tissues?

A

Capillaries

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7
Q

The contraction phase of the heart called_______ is coordinated with the relaxation phase called______.

A

Systole

Diastole

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