The Heart

Question 1

four chambers in the heart

Answer 1

right atrium, right ventricle (anterior side) left atrium, left ventricle (posterior side)

Question 2

atrium

Answer 2

blood enters heart

Question 3

ventricle

Answer 3

blood exits heart

Question 4

superior vena cava

Answer 4

draining blood from head and upper limbs

Question 5

inferior vena cava

Answer 5

draining blood from lower limbs

Question 6

right atrium

Answer 6

deoxygenated blood enters from superior and inferior vena cava

Question 7

right ventricle

Answer 7

forceful pumping of deoxygenated blood to the lungs

Question 8

pulmonary trunk

Answer 8

conducts deoxygenated blood from the heart to the lungs

Question 9

right and left pulmonary arteries

Answer 9

direct deoxygenated blood to the corresponding lung

Question 10

pulmonary veins

Answer 10

carries oxygenated blood from the lungs to the left atrium of the heart

Question 11

left atrium

Answer 11

holding chamber for blood returning from the lungs and to act as a pump to transport blood to other areas of the heart

Question 12

left ventricle

Answer 12

receives oxygenated blood from the left atrium and pumps it out under high pressure through the aorta to the body

Question 13

aorta

Answer 13

pump oxygenated blood out to the body

Question 14

off of aorta

Answer 14

brachiocephalic trunk, left common carotid artery, left subclavian artery

Question 15

brachiocephalic trunk

Answer 15

supplies blood to right arm and trunk (1)

Question 16

left common cartoid artery

Answer 16

supplies blood to head and neck

Question 17

left subclavian artery

Answer 17

supplies blood to left arm

Question 18

blood through right side of heart

Answer 18

(deoxygenated blood) superior and inferior vena cava> right atrium> tricuspid (AV) valve> right ventricle> pulmonary semilunar> pulmonary trunk> pulmonary arteries (1 for each lung)

Question 19

blood through left side of heart

Answer 19

(oxygenated blood) lungs> pulmonary vein> left atrium> mitral (AV) valve> left ventricle> aortic semilunar valve> aorta> all of body

Question 20

Right and left sides of hearts responsibilities

Answer 20

right: receiving blood and sending to lungs; left: taking in oxygenated blood and getting it to the rest of the body

Question 21

in right atrium

Answer 21

pectinate muscles, fossa ovale, right atrioventricular valve

Question 22

in right ventricle

Answer 22

right atrioventricular valve, papillary muscles, chordae tendinae, pulmonary semilunar valve

Question 23

pectinate muscles

Answer 23

ridged, lining walls; as bag fills wall will stretch and smooth out, found in right atrium

Question 24

fossa ovale

Answer 24

was a hole until your 1st breath; scar left from this closing; found in right atrium

Question 25

right atrioventricular valve

Answer 25

(tricuspid) allow blood to go from right atrium to right ventricle opens when atrial pressure rises, closes when ventricle pressure increases; found in right atrium

Question 26

papillary muscles

Answer 26

prevent backwards flow of ventricular blood into atrial cavities; attached to the tricuspid valve by chordae tendinae; right ventricle

Question 27

chordae tendinae

Answer 27

“heart strings”; connect papillary muscles to the tricuspid and bicuspid valves in the heart; right ventricle

Question 28

pulmonary semilunar valve

Answer 28

(3 crescent shaped cusps) lies btw right ventricle and pulmonary artery; opens when pressure in right ventricle rises a live pressure in pulmonary artery, when pressure falls it closes; right ventricle

Question 29

left atrioventricular valve

Answer 29

“mitral” same as right

Question 30

papillary muscles

Answer 30

in left ventricle (same as right)

Question 31

chordae tendinae

Answer 31

in left ventricle (same as right); when left ventricle contracts blood goes out aorta

Question 32

aortic semilunar valve

Answer 32

between the left ventricle and aorta; 3 crescent shaped cusps (pressure rises ventricle opens, pressure lowers in ventricle closes)