Heart Structure

Question 1

left atrium

Answer 1

pumps blood to left ventricle

Question 2

right atrium

Answer 2

pumps blood to right ventricle

Question 3

superior vena cava

Answer 3

drains into right atrium, carries blood from upper half of the body

Question 4

inferior vena cava

Answer 4

drains into the right atrium, carries blood from the lower half of the body

Question 5

pulmonary trunk

Answer 5

branches off into the right and left pulmonary arteries

Question 6

pulmonary veins

Answer 6

four - carry oxygenated blood to the heart

Question 7

aorta

Answer 7

forms an ascending and descending arch

Question 8

anteriorly

Answer 8

right side more visible

Question 9

posteriorly

Answer 9

left side more visible

Question 10

bicuspid

Answer 10

between left atrium and ventricle, two cusps

Question 11

tricuspid

Answer 11

between right atrium and right ventricle, three cusps

Question 12

chordae tendinae and papillary muscles

Answer 12

muscles contract with contraction of ventricle causing chordae to pull down on valves causing them to shut along with blood flow and prevents them from blowing back into the atria

Question 13

semi lunar valves

Answer 13

three cusps, gravity pushes the valves shut

Question 14

fibrous pericardium

Answer 14

thick, adhered to diaphragm and parietal serous, can stretch

Question 15

parietal serous

Answer 15

thin, adhered to fibrous and pericardial cavity

Question 16

pericardial cavity

Answer 16

contains thin film of fluid

Question 17

visceral serous

Answer 17

thin, adhered to heart and cavity

Question 18

coronary arteries

Answer 18

thin right and left arteries, arise from the bottom of the aorta

Question 19

cardiac veins

Answer 19

drain into the coronary sinus (visible posteriorly), has an opening in right atrium between venae cavae