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Bio 202 > Chapter 23 > Flashcards

Chapter 23 Flashcards

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Biology 101 flashcards
1
Q

Cardiac Cycle:

A

Heart contracts and relaxes rhythmically

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2
Q

Heart relaxes blood flows from veins into all 4 heart chambers during

A

diastole

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3
Q

Systole:

A

heart contracts and blood flows from atria into ventricles

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4
Q

The basic tempo of the heartbeat is set by

A

the SA node

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5
Q

Why do we need oxygen?

A

Required to harvest energy from food effeciently

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6
Q

Circulatory systems receive

A

nutrients, exchange gases, and remove wastes.

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7
Q

Mammals have a # Chamber heart?

A

4

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8
Q

How many types of vessels are there?

A

3

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9
Q

What are the different types of vessels?

A

Arteries
Veins
Capillaries

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10
Q

Arteries

A

carry blood away from the heart

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11
Q

Veins

A

return blood to the heart

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12
Q

Capillaries

A

convey blood between arteries and veins

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13
Q

Name two types of cardiovascular diseases:

A

Stroke

Atherosclerosis

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14
Q

Open circulatory systems

A

bugs- consist of

heart

open-ended vessels

blood that directly bathes the cells

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15
Q

Blood Flow:

A

Body -> Right Atrium -> Right Ventricle -> Lungs -> Left Atrium -> Left Ventricle -> Body

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16
Q

Body ->

A

Right Atrium

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17
Q

Right Atrium ->

A

Right Ventricle

18
Q

Right Ventricle ->

A

Lungs

19
Q

Lungs ->

A

Left Atrium

20
Q

Left Atrium ->

A

Left Ventricle

21
Q

Left Ventricle ->

A

Body

22
Q

deoxygenated Blood comes into the heart through:

A

superior or inferior vena cava

23
Q

deoxygenated Blood leaves the heart and goes to lungs thru the

A

pulmonary arteries

24
Q

Oxygenated blood returns to the heart via the

A

left atrium through the PULMONARY VEIN

25
Q

oxygenated blood leaves thru the

A

aorta

26
Q

heart rate is the number of heart beats per

A

minute

27
Q

heart murmur

A

defect in heart valves that permits a backflow of blood

28
Q

what sets the tempo of the heartbeat

A

SA (sinoartrial) node

29
Q

death of brain tissue from bad arteries

A

stroke

30
Q

fatty deposits in the walls of arteries narrow the blood vessels and restrict flow

A

atherosclerosis

31
Q

Blood pressure is measured as

A

systolic pressure/diastolic

32
Q

Blood pressure is persistent at or above 140 systolic &/ 90 diastolic

A

Hypertension

33
Q

Typical blood pressure for a healthy young adult is

A

120/70

34
Q

Plasma:

A

is about 90% water

35
Q

white blood cells or leukocytes

A

fight infections and cancer

36
Q

leukocytes is another name for

A

white blood cells

37
Q

Red blood cells or erythrocytes

A

transport O2 bound to hemoglobin

38
Q

erythrocytes is another name for

A

red blood cells

39
Q

Plasma is primarily

A

water

40
Q

multipotent stem cells

A

unspecialized and replace themselves & can become leukocytes

Bio 202 (8 decks)

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