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Flashcards in Chapter 23 Deck (40)
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1

Cardiac Cycle:

Heart contracts and relaxes rhythmically

2

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

diastole

3

Systole:

heart contracts and blood flows from atria into ventricles

4

The basic tempo of the heartbeat is set by

the SA node

5

Why do we need oxygen?

Required to harvest energy from food effeciently

6

Circulatory systems receive

nutrients, exchange gases, and remove wastes.

7

Mammals have a # Chamber heart?

4

8

How many types of vessels are there?

3

9

What are the different types of vessels?

Arteries
Veins
Capillaries

10

Arteries

carry blood away from the heart

11

Veins

return blood to the heart

12

Capillaries

convey blood between arteries and veins

13

Name two types of cardiovascular diseases:

Stroke
Atherosclerosis

14

Open circulatory systems

bugs- consist of

heart

open-ended vessels

blood that directly bathes the cells

15

Blood Flow:

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

16

Body ->

Right Atrium

17

Right Atrium ->

Right Ventricle

18

Right Ventricle ->

Lungs

19

Lungs ->

Left Atrium

20

Left Atrium ->

Left Ventricle

21

Left Ventricle ->

Body

22

deoxygenated Blood comes into the heart through:

superior or inferior vena cava

23

deoxygenated Blood leaves the heart and goes to lungs thru the

pulmonary arteries

24

Oxygenated blood returns to the heart via the

left atrium through the PULMONARY VEIN

25

oxygenated blood leaves thru the

aorta

26

heart rate is the number of heart beats per

minute

27

heart murmur

defect in heart valves that permits a backflow of blood

28

what sets the tempo of the heartbeat

SA (sinoartrial) node

29

death of brain tissue from bad arteries

stroke

30

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

atherosclerosis