Anatomy of Heart

Question 1

great vessels of the heart

Answer 1

pulmonary trunk, IVC/SVC, aorta

Question 2

blood flow

Answer 2

SVC/IVC –> RA –> tricuspid valve –> RV –> pulmonary SL valves –> pulmonary artery –> lungs –> pulmonary vein –> LA –> bicuspid valve –> LV –> aortic SL valve –> aorta

Question 3

Answer 3

red=ascending aorta
lime green=right atria 
light blue=right ventricle 
pink=left ventricle 
yellow=left atria 
orange=pulmonary trunk
blue=aorta

Question 4

2 layers of pericardium

Answer 4

fibrous and serous

Question 5

fibrous pericardium

Answer 5

tough external layer; non-dispensable

Question 6

serous pericardium

Answer 6

smooth internal layer, split into parietal and visceral layers

Question 7

parietal layer

Answer 7

lines inner surface of fibrous pericardium

Question 8

visceral layer

Answer 8

technically the epicardium, lines surface of heart

Question 9

pericardial cavity

Answer 9

space between parietal and visceral layers that contains lubricating fluid

Question 10

4 surfaces of heart

Answer 10

anterior, left pulmonary, right pulmonary, and diaphragmatic

Question 11

anterior surface of heart

Answer 11

formed by the right ventricle

Question 12

left pulmonary surface of heart

Answer 12

formed by the left ventricle

Question 13

right pulmonary surface of heart

Answer 13

formed by the right atrium

Question 14

diaphragmatic/inferior surface of heart

Answer 14

formed by portions of LV and RV

Question 15

coronary sulcus

Answer 15

separates atria from ventricles

Question 16

anterior and posterior sulci

Answer 16

separate left and right ventricles

Question 17

where to listen for aortic valve

Answer 17

right second intercostal space, near sternal border

Question 18

where to listen for pulmonary valve

Answer 18

left second intercostal space, near sternal border

Question 19

where to listen for tricuspid valve

Answer 19

left lower sternal border, near fifth ICS

Question 20

where to listen for mitral valve

Answer 20

left fifth ICS at midclavicular line

Question 21

openings associated with right atrium

Answer 21

SVC, IVC coronary sinus, and fossa ovalis

Question 22

chordae tendinae

Answer 22

attach cusps of AV valves to the papillary muscles

Question 23

pectinate muscles

Answer 23

only in the left auricle

Question 24

aortic valve

Answer 24

prevents backflow into left ventricle

Question 25

coronary sinus receives blood from _

Answer 25

great cardiac vein, posterior cardiac vein, middle cardiac vein, and small cardiac vein

Question 26

anterior cardiac vein drains into _

Answer 26

right atrium

Question 27

great cardiac vein pairs with _

Answer 27

anterior interventricular artery and circumflex artery

Question 28

middle cardiac vein pairs up with _

Answer 28

posterior interventricular artery

Question 29

small cardiac vein pairs up with _

Answer 29

right marginal artery and right coronary artery

Question 30

posterior cardiac vein pairs up with _

Answer 30

posterior left ventricular artery

Question 31

anulus fibrosus

Answer 31

cardiac skeleton --< 4 fibrous rings surrounding valves

Question 32

SA node

Answer 32

atria contract

Question 33

AV node

Answer 33

slows impulse, ventricles fill

Question 34

AV bundle of His

Answer 34

propagate impulse to Purkinje fibers

Question 35

Purkinje fibers

Answer 35

stimulate ventricles to contract