Chapter 6 (Cardiovascular system)

Question 1

What does the cardiovascular system consist of?

Answer 1

heart, blood, blood vessels. (circulatory system)

Question 2

What are the four chambers of the heart?

Answer 2

2 upper- atria

2 lower- ventricles

Question 3

aorta

Answer 3

the main artery that carries blood away from your heart to the rest of your body. The blood leaves the heart through the aortic valve.

Question 4

How does blood travel?

Answer 4

from the right atrium, to the right ventricle, goes to the lungs thru pulmonary veins to be oxygenated, goes to the left atrium via pulmonary veins. when the oxygenated blood is in the left atrium, the heart contracts it sends the blood to the left ventricle. pumps blood into aorta and travels thru the body

Question 5

venae cavae (superior/inferior vena cava)

Answer 5

two large veins that return blood back to the heart (the right atrium)

Question 6

What is the strongest part of the heart?

Answer 6

left ventricle bc it is the last step in reaching the aorta.

Question 7

Between each atrium and ventricle there is what?

Answer 7

a one way valve.

Question 8

What does this one way valve do?

Answer 8

prevents blood from being forced back up into the atrium when the ventricle contracts.

Question 9

does the pulmonary artery and aorta also have a one-way valve?

Answer 9

yes, so that the blood does not return to the right ventricle.
and yes so that the blood does not return to the left ventricle.

Question 10

Cardiac conduction system

Answer 10

pacemaker and a system of specialized muscle cells that conduct electrical pulses that stimulate heart to beat.

Question 11

Epinephrin released into the blood do what?

Answer 11

Control the hearts rate and strength of contractions

Question 12

What kind of blood vessel carries blood away from the heart?

Answer 12

artery

Question 13

What are the different kinds of arteries?

Answer 13

Coronary 
aorta
pulmonary
carotid 
femoral
brachial
radial
posterior tibial
dorsalis pedis

Question 14

Coronary artery

Answer 14

branch off from aorta and supply heart muscles with blood.

Question 15

Aorta

Answer 15

largest artery. the main artery that carries blood away from your heart to the rest of your body. The blood leaves the heart through the aortic valve. at the point of navel it splits into iliac arteries

Question 16

Pulmonary artery

Answer 16

begins at right ventricle, carries oxygen poor blood into the lungs.

Question 17

Carotid arteries

Answer 17

major arteries of the neck. the artery that is palpating during CPR pulse checks. carries main supply of blood for the head.

Question 18

Femoral artery

Answer 18

major artery of the thigh and leg. (femoral- femur). pulsations can be felt for this artery between the abdomen and the groin.

Question 19

Brachial artery

Answer 19

in the upper arm. pulse that is checked during infant CPR

Question 20

What pulse is checked during infant CPR?

Answer 20

Pulse in the brachial artery

Question 21

Radial artery

Answer 21

supplied blood to the lower arm. this is the artery felt when taking pulse at the thumb side of the wrist. (radial- radius bone is forearm)

Question 22

Posterior tibial artery

Answer 22

used when determining circulatory status of the lower extremity. may be palpitated on the posterior aspect of the medial malleolus

Question 23

Dorsal pedis artery

Answer 23

lies on the top (dorsal portion) of the foot, lateral to the large tendon of the big toe

Question 24

What is the smallest branch of an artery?

Answer 24

arteriole

Question 25

Capillaries

Answer 25

tiny blood vessels found throughout the body. where gases, nutrients and waste products are exchanged.

Question 26

venule

Answer 26

small veins they then merge to bigger veins.