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From Flashcardlet > BIO 111L: 4 > Flashcards

BIO 111L: 4 Flashcards

0
Q

What is the cardiovascular system responsible for?

A

Transporting materials such as O2, CO2, nutrients, hormones, etc

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1
Q

What do cells use up? What do cells produce?

A

Nutrients; wastes

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2
Q

Three major parts of cardiovascular system

A

Blood, blood vessels, heart

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3
Q

Average adult human blood volume

A

5 Liters

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4
Q

Arteries definition

A

Large blood vessels with thick walls that lead away from heart.

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5
Q

Capillaries definition

A

One cell later thick and located across capillaries that dissolved gases, nutrients, and wastes. THEY ARE THIN SO THAT DIFFUSION WILL WORK

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6
Q

Veins definition

A

Return blood to the heart. Large and thin walled

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7
Q

Pulmonary circulation

A

Heart lungs heart

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8
Q

Systemic circulation

A

Heart body heart

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9
Q

Heart has how many chambers?

A

2 atria and 2 ventricles

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10
Q

Right Atria

A

receive and collects blood from body

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11
Q

Ventricles

A

Pumping chamber in which blood is sent through once atria contracts

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12
Q

Atrioventricular valves

A

Separate atria and ventricles

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13
Q

Semilunar valves

A

Separate ventricles and vessels

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14
Q

What is happening when u hear the lub sound?

A

Atrioventricular valves close as ventricles contract

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15
Q

What is happening when u hear the dup sound?

A

Closing of semilunar valves as ventricles relax

16
Q

SA NODE

A

Generate nerve impulses that quickly spread across heart muscle causing atria and ventricles to contract

17
Q

Blood pressure

A

Force of blood against vessel walls.

18
Q

Systole

A

When ventricles contract

19
Q

Diastole

A

When ventricles relax

20
Q

Pulse pressure

A

Difference between systolic and diastolic

21
Q

Hypertension

A

Excessive pressure against vessel walls.

22
Q

Left atrium

A

Receive and collect blood from lungs

From Flashcardlet (8 decks)

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