15- Thorax III

Question 1

What term describes the direction of blood flow?

Answer 1

Unidirectional

Question 2

What part of the mediastinum is the heart in?

Answer 2

middle/ inferior

Question 3

What are the 2 types of heart valves?

Answer 3

Right/ Left Atrioventricular valves
Aortic/ Pulmonary valves

Question 4

Why are heart valves important?

Answer 4

promote unidirectional blood flow
prevent backflow

Question 5

What are the semilunar valves?

Answer 5

Aortic/ Pulmonary valves

Question 6

What is the tricuspid valve?

Answer 6

Right atrioventricular valve (AV)

Question 7

What is the bicuspid valve?

Answer 7

Left atrioventricular valve (AV)

Question 8

What is the mitral valve?

Answer 8

= bicuspid valve
= left AV

Question 9

What do the atrioventricular valves contain?

Answer 9

cusps/ cords/ papillary muscles

Question 10

What contains cords, cusps, and papillary muscles?

Answer 10

Atrioventricular valves

Question 11

What valve lies between the left atrium/ ventricle?

Answer 11

Left AV valve

Question 12

What valve lies between the right atrium/ ventricle?

Answer 12

Right AV valve

Question 13

What are the great vessels from right to left?

Answer 13

SVC/ Aorta/ Pulmonary trunk

Question 14

What do the AV valves look like?

Answer 14

parachutes

Question 15

What are the tendinous cords in AV valves?

Answer 15

chordae teninae

Question 16

What is the general term of the aortic/ pulmonary valves?

Answer 16

semilunar

Question 17

What prevents blood from flowing back into the ventricles?

Answer 17

semilunar valves
= pulmonary/ aortic

Question 18

What is ventricular systole?

Answer 18

contraction

Question 19

What is ventricular diastole?

Answer 19

relaxation

Question 20

When are the valves open?

Answer 20

contraction/ systole

Question 21

When are the valves closed?

Answer 21

relaxation/ diastole

Question 22

How many valves are associated with each ventricle?

Answer 22

2-AV/ semilunar

Question 23

Where does the left coronary artery arise from?

Answer 23

Ascending aorta

Question 24

Where does the right coronary artery arise from?

Answer 24

Ascending aorta

Question 25

What receives venous blood from the whole body?

Answer 25

Right atrium

Question 26

What valve guards the exit from the right ventricle?

Answer 26

Pulmonary valve

Question 27

What valve guards the exit from the left ventricle?

Answer 27

Aortic valve

Question 28

What ventricle is the pulmonary valve associated with?

Answer 28

Right ventricle

Question 29

What ventricle is the aortic valve associated with?

Answer 29

Left ventricle

Question 30

What brings most of the blood from the hearts surface to the right atrium?

Answer 30

Coronary sinus

Question 31

What receives venous blood from the whole body?

Answer 31

Right atrium

Question 32

What is the wall between the right/ left atrium?

Answer 32

Interatrial septum

Question 33

What is the thumbprint on the interatrial septum associated with fetal blood flow?

Answer 33

Fossa ovalis

Question 34

What are the superior/ inferior openings in the interatrial septum?

Answer 34

Opening of SVC
Opening of IVC

Question 35

How does blood flow?

Answer 35

RA> RV> lungs> LA> LV

Question 36

What describes the anterior wall of the right atrium?

Answer 36

rough

Question 37

What describes the posterior wall of the right atrium?

Answer 37

smooth

Question 38

What is guarded by the right AV valve?

Answer 38

Right atrioventricular orfice

Question 39

How many cusps are associated with the pulmonary valve?

Answer 39

3

Question 40

What valves are associated with the right ventricle?

Answer 40

right AV valve = tricuspid
pulmonary valve = semilunar

Question 41

What valves are associated with the left ventricle?

Answer 41

left AV valve = bicuspid/ mitral
aortic valve = semilunar

Question 42

What is the triangular wall of cardiac tissue that separates the left and right ventricles of the heart?

Answer 42

Interventricular septum