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Bio 12 > Circulatory System > Flashcards

Circulatory System Flashcards

1
Q

Joe does the respiratory system use the circulatory system

A

To deliver oxygen

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2
Q

How does the digestive system use the circulatory system

A

Deliver nutrients

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3
Q

4 functions of the cardiovascular system

A

Deliver oxygen, nutrients, remover waste, CO2, and other waste

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4
Q

Is the system open ?

A

No it is a closed system of the heart and the blood vessels

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5
Q

What is the movement of blood in the heart

A

Into the right side, out to lungs, into left side, out to the body

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6
Q

Pulmonary circulation

A

Oxygenated blood and removes CO2

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7
Q

Systemic circulation

A

Provides nutrients to cells and removes waste

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8
Q

Difference between artery and veins

A

Attires carry blood always from heart to rest of body, veins carry blood from the rest of the body to the heart

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9
Q

What Carries the blood around (5 things)

A

Arteries, arterioles, capillaries, venues, veins

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10
Q

What are arteries/arterioles

A

Muscular walls, moves blood away from heart, they have a pulse,

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11
Q

What regulates arteries

A

The ANS (autonomic nervous system)

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12
Q

What are arterioles connected to

A

Capillary beds

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13
Q

What are capillary beds

A

A intertwined network of capillaries that supply an organ( ex the beds in the digestive system are open after eating so the capillaries can pick up nutrients) open means blood is flowing

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14
Q

Where is the the subclavian and what is it

A

It is near the shoulder and it a major artery

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15
Q

Where and what are jugular veins

A

They are part of the major arteries and are in the neck and take blood from the head to the heart

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16
Q

What are where are the carotid arteries

A

They are arteries that supple the head with oxygenated blood and are in and around the neck

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17
Q

What are the mesenteric arteries

A

They supple blood to the intestines

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18
Q

Anterior and posterior vena cava

A

The anterior delivers deoxygenated blood from higher parts of the body to the right side of the heart. The posterior carries deoxygenated blood from lower parts of the body into the right atrium

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19
Q

Pulmonary veins/ arteries

A

Arteries carry oxygenated from heart to lungs. Veins bring blood from lungs to heart

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20
Q

Hepatic portal vein

A

Gets blood from small intestine and goes to liver

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21
Q

Hepatic vein

A

delivers blood from liver to heart

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22
Q

Renal arteries/ veins

A

Veins carry blood from kidney to posterior vena cava (heart). Arteries carry blood from heart to kidneys

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23
Q

Aorta

A

Top of left ventricle and delivers oxygenated blood to the body

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24
Q

What are capillaries

A

They are the smallest blood vessels

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25
Q

What do capillaries do

A

They are responsible for nutrients and waste exchange.( nutrients and oxygen delivered, co2 and waste removed)

26
Q

Veins

A

Move blood towards heart (usually deoxygenated)

27
Q

Venules

A

They are small veins that receive blood from capillaries

28
Q

Do veins have valves

A

Yes to stop back flow

29
Q

What helps blood move back to the heart

A

Muscle contractions

30
Q

How are capillaries, venules and veins connected

A

Capillaries join to make venules which join yo make veins

31
Q

Why happens when arteries age

A

They lose elasticity and plaque can build up on the walls

32
Q

Varicose veins

A

They are enlarged, dilated veins due to too much pressure

33
Q

Blood pressure

A

The pressure of the circulating blood against the walls of blood vessels

34
Q

What are blood vessels

A

Arteries, capillaries, venules and veins

35
Q

Osmotic pressure

A

Pressure that is due to proteins staying in capillaries

36
Q

What are capillaries the location for

A

The exchange between plasma, tissue fluid and cytosol

37
Q

Cytosol

A

Guild of the call

38
Q

How does oxygen and nutrients move

A

From blood to tissues

39
Q

How does waste at CO2 move

A

From tissues to blood

40
Q

Movement of things in capillaries
Proteins
Water, oxygen, glucose
CO2, waste

A

Proteins stay in, water and oxygen and glucose move out, CO2 and wastes movie in

41
Q

How does blood get oxygenated

A

Passes through the lung tissue. Where oxygen bonds with hemoglobin

42
Q

Hemoglobin

A

The protein in red blood cells that pick up oxygen

43
Q

How is blood pressure after getting oxygenated

A

It is 1/3 less of the pressure for when it first come out of the heart

44
Q

How does fluid exchange effect blood volume

A

No change in total blood volume

45
Q

Histamines

A

Enlarged pours in blood vesicles

46
Q

What do metarterioles

A

They bypass capillaries, shut blood directly between arteriole and vein

47
Q

What is the Lymphatic system

A

It is thin walled vessels that drain excess fluid. It cleans fluids with the lymph nodes.

48
Q

What is the relationship between capillaries and lymph vessels

A

Excess water and solutes that are filtered out of the capillaries are then picked up my the lymph vessels and then go back into circulation

49
Q

How is the heartbeat controlled

A

Intrinsically and extrinsically

50
Q

What is an intrinsically controlled heartbeat

A

It means the best is regulated by mechanisms in the heart not the brain

51
Q

Extrinsic heartbeat

A

Slowed and sped up by brain impulses but not controlled

52
Q

Intrinsic heat control

A

Nerve tissues embedded in cardiac cells controls the heart

53
Q

AV node (atrioventricular)

A

The AV node conducts impulses and controls the fate at which they are sent to the ventricle (right side)

54
Q

SA node (sinoatrial)

A

The pacemaker starts impulses and trigger contraction of the atria

55
Q

How many steps of the heartbeat

A

5

56
Q

Step 1 of heartbeat

A

Electrical activity goes to the Av node through internodal pathways

57
Q

Step 2 heartbeat

A

Depolarization speeds across the right atria and is slowed by the AV node

58
Q

Step 3 of the heartbeat

A

Depolarization moves through the ventricular conducting system to the apex of the heart

59
Q

Step 4 of the heartbeat

A

The depolarization enters the ventricles and speeds upwards to the apex

60
Q

Extrinsic heart control

A

Impulses from the brain control the speed of the heartbeat

61
Q

What is extrinsic heart control part of

A

The autonomic nervous system

Bio 12 (3 decks)

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