Chapter 6: Cardiovascular System

Question 1

Cardiovascular system

Answer 1

system made up of the heart and blood vessels. Also called circulatory system

Question 2

atria

Answer 2

the two upper chambers of the heart. Right receives unoxygenated blood from body. Left receives oxygenated blood from lungs

Question 3

Ventricles

Answer 3

two lower chambers of the heart. Right sends O2 poor blood to lungs. Left sends O2 rich blood to the whole body

Question 4

Venae cavae

Answer 4

Two major veins that return blood from the body to right atrium. Superior vena cava returns blood from upper body & head. Inferior vena cava returns blood from everything inferior to the heart

Question 5

Valve

Answer 5

structure that opens and closes to permit the flow of a fluid in only one direction

Question 6

Where are there valves in the cardiovascular system?

Answer 6

Between each atrium & ventricle.
Pulmonary Artery
Aorta

Question 7

Cardiac conduction System

Answer 7

specialized muscle tissues that conducts electrical impulses that stimulate the heart to beat

Question 8

Artery

Answer 8

any blood vessel carrying blood away from the heart

Question 9

coronary arteries

Answer 9

blood vessels that supply blood to the muscle of the heart (myocardium)

Question 10

aorta

Answer 10

largest artery in the body. transports blood from the left ventricle to begin systemic circulation

Question 11

Pulmonary artery

Answer 11

vessel that carries deoxygenated blood from the right ventricle to the lungs

Question 12

carotid arteries

Answer 12

large neck arteries, one on each side of the neck. Carry blood from heart to head

Question 13

Femoral artery

Answer 13

major artery supplying the leg

Question 14

brachial artery

Answer 14

artery of the upper arm; where you check the pulse of an infant CPR

Question 15

radial artery

Answer 15

arty of the lower arm; used when taking the pulse at wrist

Question 16

Posterior tibial artery

Answer 16

artery supplying the foot, behind the medial ankle

Question 17

dorsalis pedis artery

Answer 17

artery supplying the foot, lateral to the large tendon of the big toe

Question 18

arteriole

Answer 18

smallest kind of artery

Question 19

capillaries

Answer 19

thin walled microscopic blood vessels. Where O2/CO2 & nutrient/waste exchange takes place within the body’s cells

Question 20

Venule

Answer 20

smallest kind of vein

Question 21

vein

Answer 21

any blood vessel returning blood to the heart

Question 22

Pulmonary Vein

Answer 22

vessel that carry oxygenated blood from the lungs to the left atrium

Question 23

plasma

Answer 23

fluid portion of the blood. About 50% of your blood

Question 24

Red blood cells

Answer 24

Carry oxygen to and carbon dioxide away from the cells

Question 25

White blood cells

Answer 25

produce substances that help fight body infections

Question 26

Platelets

Answer 26

Membrane-enclosed fragments of specialized cells. Help form blood clots

Question 27

Pulse

Answer 27

rhythmic beats caused as waves of blood move through and expand the arteries

Question 28

Peripheral pulses

Answer 28

radial, brachial, posterior tibial, & dorsalis pedis pulses. Can be felt at peripheral points of body

Question 29

Central pulses

Answer 29

Carotid and femoral pulses. Can be felt in central part of the body.

Question 30

Blood pressure

Answer 30

pressure caused by blood exerting force against the walls of blood vessels. Has two parts Systolic BP & Diastolic BP 120/80

Question 31

Systolic BP

Answer 31

pressure in the arteries when the left ventricle contracts and pushes blood out

Question 32

Diastolic BP

Answer 32

pressure in the arteries when the left ventricle is refilling

Question 33

perfusion

Answer 33

supply of O2 and nutrients and removal of wastes from the cells and tissues of body. Happens as a result of blood flow through capillaries

Question 34

Hypoperfusion

Answer 34

AKA shock. When body cannot adequately circulate blood to bodys cells to deliver O2, nutrients & remove waste. Life threatening condition