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Anatomy > Blood vessels > Flashcards

Blood vessels Flashcards

1
Q

How are blood vessels built?

A

In layers of tissue:
Tunica intima
Tunica media
Tunica Adventitia

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2
Q

Difference between vein and artery in slides?

A

Vein is collapsed and flabby/ bag like

Artery is wide open space and have thick walls

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3
Q

For blood vessels, the farther out you go, the less layers and the thinner. True or False

A

True

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4
Q

Layer of a blood vessel

A

tunic

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5
Q

Outermost layer of blood vessel

Found in larger blood vessels in the body

tough layer

A

Tunica externa

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6
Q

blood vessel layer in the middle made of several tissues

active layer

has more elastic rather than muscle tissue

A

Tunica media

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7
Q

blood vessel layer in the inside that is the lining

passive layer

A

Tunica interna

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8
Q

Tunica externa is composed of what kind of tissue?

A

Dense collagenous connective tissue

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9
Q

Tunica media is composed of which kinds of tissues?

A

smooth muscle
dense irregular elastic connective tissue

In some blood vessels there’s more of one or the other.

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10
Q

Function of Tunica media?

A

expansion/contract and recoil/swell

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11
Q

Function of Tunica interna tissue type?

A

endothelium

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12
Q

Layer that is always present in every blood vessel

A

endothelium lining

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13
Q

All the action in the human body takes place in the__where all the exchanges occur

A

capillaries

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14
Q

blood vessels of the blood vessels

A

vasa vasorum

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15
Q

Blood vessels in the spaces of the body have a tough layer called

A

tunica externa

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16
Q

Blood vessels within tissues/organs need less structure. True or False?

A

True

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17
Q

What controls the diameter and blood flow in the tunica media?

A

smooth muscle

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18
Q

What controls the pressure in the tunica media?

A

elastic tissue

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19
Q

tear or weakness of some of the layers where the blood pressure can press out through the layers and bulging of the blood vessels. Tear throughs the tunica media.

A

Aneurysm

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20
Q

high pressure like hoses

blood vessels that are coming out of the heart

Pressure from heart keeps blood flowing directly to __

Have thick walls to support high pressure

If cut, shoots blood

A

arteries

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21
Q

Which arteries are near the surface of the skin?

A

brachial arteries under the arm near the arm pit.

femoral artery that are facing into each other

22
Q

Condition of Hardening of the arteries.

Doesn’t help the heart pump the blood anymore

A

arterial sclerosis

23
Q

The blood flow’s pressure originates from the aorta and the the ___ helps the blood flow to coninue

A

elasticity of the large arteries

24
Q

Once the arteries pass the tissue, the artery, tunica media has more ___ and less ___

A

smooth muscle

elastic tissue

25
Q

Smallest arteries called
few muscle cells
bit of tunica media
almost to the capillaries

A

arterioles

26
Q

thicker smooth muscles in this type of arteries

controlling the output of the blood

controlled by nerves coming from the brain: heart rate, digestion

A

muscular arteries

27
Q

There is not enough blood to fill all the arteries.

True or false?

A

True

28
Q

The ___can open and close various arteries to needy tissues.

A

brain

29
Q

More blood to one area means less blood in another.

True of false?

A

True

30
Q

Blood pressure is maintained by tension in the arteries.

True or False?

A

True

31
Q

The body gets into trouble when more than one tissue needs large amounts of blood. True or False?

A

True

32
Q

Loss of pressure without loss of blood is _.

All the arteries open at once.

A

shock

33
Q

capillary gates
leading into the capillaries
with muscle cells to pinch to make them smaller/biggier

A

arterioles

34
Q

In smooth muscle cells the activity determines the amount of oxygen. True or False

A

True

35
Q

Pathway for arteries:

A

elastic artery
muscular artery
arterioles
capillaries

36
Q

Plasma continuously leaks out it feeds surrounding cells with nutrients. Holes to allow for leaks.

Where found?

A

sinosoidal capillaries

kidney

37
Q

Capillary regulates. Preventing and controlling the environment. Tissues will have the same mechanical makeup as the plasma.

A

fenestrated capillaries

38
Q

control movement of plasma into tissue

A

continuous capillary

39
Q

Continuous capillary controls what gets through the ___.

A

blood brain barrier

40
Q

Brain and spinal chord are physically and chemically separate from the rest of the body. True or False?

A

True

41
Q

High security area within the body

A

Central Nervous system

42
Q

___capillaries help control movement of materials into the Central Nervous System, CNS

A

continuous

43
Q

smallest vein

A

venules

44
Q

collecting tubes
returning back to the heart
don’t need smooth vein
don’t need elastic tissues

A

veins

45
Q

contain little tunica media
have tunica externa & tunica interna
contains endothelium with tunica externa

A

veins

46
Q

How does the blood return to the heart?

A

little pressure to help blood return to the heart

structure of the veins

veins are flexibile and have valves to create a one way flow

movement of the body help move the blood in veins

Breathing assits in venous blood return

47
Q

condition where the valves break down in the veins and swell

A

varicose veins

48
Q

__% of blood is in the heart and lungs

A

20

49
Q

__% of blood in the systemic arteries

A

15

50
Q

__% of blood in the capillaries

A

5

51
Q

___% of blood in the venous blood which is considered to be a cardiovascular reservoir.

low pressure but huge quantities

A

60

52
Q

How does breathing assist in venous blood return?

A

Air is drawn into the thoracic cavity as pressure lowers through increased thoracic space

Lower inner thoracic pressure results in blood being drawn toward the thoracic cavity and the heart

Anatomy (59 decks)

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