Chapter 8: Cardiovascular System Flashcards Preview

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Flashcards in Chapter 8: Cardiovascular System Deck (74)
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1

Heart

Propels blood for the transport of respiratory gases, nutrients, wastes, and immune substances in the body
-circulates blood to the lungs for O2 and CO2 exchange

2

Heart Structure and Function

-right side (pulmonary circulation) sends blood to the lungs for O2
-left side (systemic circulation) sends blood to all body systems

3

Layers of The Heart

Epicardium- top layer of the heart
Myocardium- heart muscle
Endocardium- inner lining of the heart
Pericardium- sac holding the heart

4

Heart Chambers: Atria

receive blood
right atria (atrium) - deoxygenated blood from venae cavae
left atria (atrium) - oxygenated blood from lungs

5

Ventricles

pump blood from the heart
right ventricle- pumps blood to lungs for oxygenation (pulmonary circulation)(below right atrium)
left ventricle- pumps blood through the aorta to the body systems (systemic circulation)(below let atrium)

6

Heart Valves

prevent backflow (regurgitation) of blood
-Tricuspid- from right ventricle into right atrium
-Bicuspid (mitral) valve- from left ventricle into left atrium
-Pulmonic (pulmonary semilunar) valve- from pulmonary artery into right ventricle
-Aortic (aortic semilunar) valve- from aorta into left ventricle

7

Heart Valve: Tricuspid

prevent backflow (regurgitation) of blood from right ventricle into right atrium

8

Heart Valve: Bicuspid (mitral) valve

prevent backflow (regurgitation) of blood from left ventricle into left atrium

9

Heart Valve: Pulmonic (pulmonary semilunar) valve

prevent backflow (regurgitation) of blood from pulmonary artery into right ventricle

10

Heart Valve: Aortic (aortic semilunar) valve

prevent backflow (regurgitation) of blood from aorta into left ventricle

11

Arteries (blood vessel)

carry blood away from the heart
-carry oxygenated blood

12

Capillaries (blood vessel)

-join arterial system with venous system
-microscopic vessel
-have thin walls to allow exchange of substances between blood and body tissues

13

Veins

carry blood to the heart
-carry deoxygenated blood
-contain valves to help the return of blood to the heart

14

4 Chambers Of The Heart

-right atrium
-right ventricle
-left atrium
-left ventricle

15

Pulmonary artery vs Pulmonary vein

pulmonary artery- carries deoxygenated blood
pulmonary vein- carries oxygenated blood

16

cardi/o, coron/o

heart

17

atri/o

atrium

18

ventricul/o

ventricle

19

sept/o

septum

20

phleb/o, ven/o

vein

21

arteri/o

artery

22

valv/o, valvul/o

valve

23

electr/o

electricity

24

ather/o

fatty plaque

25

embol/o

embolus

26

sphygm/o

pulse

27

my/o

muscle

28

sclerosis

hardening

29

sten/o, stenosis

narrowing, stricture

30

thromb/o

blood clot