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APHM 2332 > lab practical 2 > Flashcards

lab practical 2 Flashcards

1
Q

What is the order of oxygenated blood from the heart to the capilarys

A

Aorta -> Artery -> arteriole -> capillaries

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2
Q

What is the order of oxygenated blood from the heart to the capilarys

A

Aorta -> Artery -> arteriole -> capillaries

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3
Q

What is the order of de-oxygenated blood from the capillareis back to the heart

A

Capillaries -> venules -> veins -> vena cava

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4
Q

What are the two circulation systems?

A

Systemic and pulmonary

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5
Q

Which circulatory route has arteries that CONTAIN O2 and veins have NO O2

A

Systemic circulation

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6
Q

Which circulatory route has arteries that CONTAIN O2 and veins have NO O2

A

Systemic circulation

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7
Q

Which circulatory route has veins that CONTAIN O2 and arteries have NO O2?

A

pulmonary circulation

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8
Q

Which circulatory route has veins that CONTAIN O2 and arteries have NO O2?

A

pulmonary circulation

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9
Q

What are the three types of vessels?

A

arteries (elastic, muscular, arterioles), capillaries, veins (venules)

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10
Q

What are the layers of the vessels?

A

Tunica Eterna, Tunica Media, Tunica interna (intima)

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11
Q

What are the layers of the vessels?

A

Tunica Eterna, Tunica Media, Tunica interna (intima)

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12
Q

What layer of the vessels contains elastic and collagen fibers, and supports and protects?

A

Tunica Externa

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13
Q

What layer of the vessels contains elastic and collagen fibers, and supports and protects?

A

Tunica Externa

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14
Q

Which layer of the vessel is the thickest?

A

Tunica Media

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15
Q

What type of fibers does the tunica media contain?

A

elastic and smooth muscle fibers that encircle diameter of vessel

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16
Q

What is the tunica media regulated by?

A

sympathetic nervous system

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17
Q

Is the tunica media thicker or thinner in veins?

A

thinner

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18
Q

What layer of the vessel contains simple squamous epithelium, and elastic tissue?

A

Tunica Interna

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19
Q

What would cause plaque formation in the tunica interna?

A

Damage to endothelium -> platelets stick to wall -> plaque formation

20
Q

Which type of artery is large diameter and have more elastic fibers in the tunica media than other arteries?

A

Elastic arteries

21
Q

What type of artery is aorta and pulmonary arteries?

A

Elastic arteries

22
Q

Which type of artery is smaller in diameter, has more smooth muscle and fewer elastic fibers?

A

Muscular

23
Q

Which type of artery is smaller in diameter, has more smooth muscle and fewer elastic fibers?

A

Muscular

24
Q

How does Muscular arteries control blood flow to different areas of the body?

A

vasoconstriction and vasodilation

25
Q

Which artery control blood flow into capillaries and play a very large role in controlling blood pressure?

A

Arterioles

26
Q

What structure receive blood from capillaries and drains into veins?

A

venules

27
Q

What structure receive blood from capillaries and drains into veins?

A

venules

28
Q

What two things does venules contain?

A

Contain tunica interna (endothelium) & tunica media (few smooth muscle fibers)

29
Q

What two things does venules contain?

A

Contain tunica interna (endothelium) & tunica media (few smooth muscle fibers)

30
Q

Which structure contains tunica interna, media and externa and contains fewer smooth muscle fibers and elastic fibers than arties?

A

Veins

31
Q

What does artery’s contains that veins to do not?

A

elastic external or internal elastic lamina

32
Q

What is the structure in the vein that prevents back flow of blood?

A

Valves

33
Q

What is varicose veins?

A

faulty valves allow back flow and pooling of blood

34
Q

What structure allows for RBC single file?

A

Capillaries

35
Q

What is capillaries made up of?

A

single layer endothelial cells supported by a basement membrane

36
Q

In capillaries what are the fusion of plasma membranes of adjacent cells?

A

tight junctions

37
Q

what does tight junction allow?

A

only allow lipid soluble or membrane carrier-contain substances to pass

38
Q

In capillaries what are the spaces between cells?

A

intercellular clefts

39
Q

In capillaries what allows substances to pass through capillary walls (tanscytosis)?

A

vesicles

40
Q

In capillaries what are the pores in plasma membrane that is covered by thin membrane?

A

fenestration (windows)

41
Q

What does blood pressure do?

A

drives plasma out of capillaries, which then is interstitial fluid

42
Q

What does blood osmotic pressure do?

A

draws interstitial fluid back into venouse end of capillary

43
Q

what is blood pressure?

A

pressure exerted by blood against blood vessel walls

44
Q

Where is blood pressure the highest?

A

aorta and it decreases as it travels further from the heart

45
Q

What is systolic blood pressure?

A

ventricular contraction

46
Q

What is diastolic blood pressure?

A

ventricular relaxation, no blood ejected

APHM 2332 (3 decks)

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