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living env. > transport vessels > Flashcards

transport vessels Flashcards

1
Q

how thick are arteries?

A

thick

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2
Q

what are arteries?

A

they carry blood under high pressure to body

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3
Q

what is a heart beat?

A

pulse w/in artery

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4
Q

what is the size of capillaries?

A

one cell wall thick

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5
Q

where do capillaries carry blood to?

A

cells

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6
Q

what are capillaries?

A

site of exchange

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7
Q

how thick are veins?

A

they are thin

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8
Q

what do veins do?

A

they carry blood under low pressure

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9
Q

where do veins carry blood to?

A

the heart

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10
Q

what do veins contain?

A

one way flaps

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11
Q

what is icf?

A

intracellular fluid and lymph

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12
Q

what occurs due to icf?

A

fluid is forced out of capillaries and bathes the cells.

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13
Q

where is all material exchange dissolved in?

A

the icf

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14
Q

where do excess icf get collected in?

A

the lymphatic system (vessels)

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15
Q

what happens when icf is collected?

A

it becomes lymph

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16
Q

what happens to all the lymph made from excess icf?

A

it is drained back into the large veins near the heart.

17
Q

what do the major lymphatic systems have?

A

they have lymph nodes

18
Q

what do phagocytes do in the lymph nodes of the major lymphatic systems?

A

they filter bacteria and dead cells from the lymph

19
Q

how much chambers does the heart have?

A

4 chambers

20
Q

how are the chambers of the heart split?

A

there are two upper atria and two lower ventricles.

21
Q

what do the atria do?

A

they receive blood returning to the heart from the rest of the body

22
Q

what do ventricles do?

A

they pump blood out of the heart into the arteries.

23
Q

what does the right ventricle do?

A

they receive deoxygenated blood from the body and pumps it thru the pulmonary artery to the lungs.

24
Q

what does the left ventricle do?

A

they receive oxygenated blood from the lungs thru the pulmonary vein and pump it into the body.

25
Q

what are valves?

A

they are one-way blood flows thru the heart.

26
Q

where are the valves at?

A

1) between the atria and ventricles
2) between the right ventricle and pulmonary arteries
3) between the left ventricle and aorta

27
Q

what is blood pressure?

A

exerted an artery wall when heart pumps

28
Q

what does high blood pressure do?

A

the heart contracts (ejects blood)

29
Q

what happens when there is low blood pressure?

A

the heart relaxes (refills blood)

30
Q

where is the pulmonary circulation?

A

between heart and lungs

31
Q

where is systemic circulation?

A

between heart and rest of the body

32
Q

what does the systemic circulation exclude?

A

the lungs

33
Q

what is cardiac circulation?

A

coronary arteries

living env. (18 decks)

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