HEART- features

Question 1

atria

Answer 1

two upper chambers of the heart that contract o force blood into the ventricles

Question 2

ventricles

Answer 2

lower chambers of heart
contract to force blood out of the heart

Question 3

vena cava

Answer 3

vein
brings deoxy blood from body into heart

Question 4

pulmonary artery

Answer 4

large blood vessel that takes deoxy blood from right ventricle of heart to lungs

Question 5

pulmonary vein

Answer 5

blood vessel
carries oxy blood from lungs to left atrium

Question 6

atrioventricular valves

Answer 6

separate the atria from the ventricles
include the mitral valve as well as the tricuspid valve

Question 7

septum

Answer 7

muscle and connective tissue
separates left and right ventricle- prevents oxy/deoxy blood mixing

Question 8

semi-lunar valves

Answer 8

half-moon-shaped structures
located between the left ventricle and the aorta
permit blood flow into arteries from ventricles

Question 9

diastole

Answer 9

phase where heart chambers relax and allow themselves to fill with blood

Question 10

systole

Answer 10

phase where heart chambers contract and force blood out

Question 11

tendinous chords

Answer 11

prevent AV valves turning inside out due to pressure

Question 12

coronary arteries

Answer 12

wrapped around the heart to supply blood to cardiac muscle

Question 13

cardiac muscle

Answer 13

thicker on the LHS - higher pressure needed to pump blood further

Question 14

cardiac diastole

Answer 14

A V relax
pressure decr
SL valves close