Cardiovascular System Anatomy of the Heart

Question 1

heart

Answer 1

pump consisting of 4 chambers; 2 upper and 2 lower

Question 2

2 upper chambers of the heart

Answer 2

atria (singulair atrium)

Question 3

2 lower chambers of the heart

Answer 3

ventricles

Question 4

pump station one (right side of the heart)

Answer 4

on the right side of the heart, sends oxygen-deficient blood to the lungs, where the blood picks up oxygen and releases its carbon dioxide and sends it down to the right side of the heart

Question 5

pump station two (left side of the heart)

Answer 5

newly oxygenated blood is forced out to all parts of the body. At the body tissues, the blood loses its oxygen.

Question 6

what happens once body tissues take the oxygenated blood?

Answer 6

on returning to the heart (station one)the blood which is now low in oxygen and rich in carbon dioxide is sent out to the lungs to begin the cycle all over again

Question 7

superior venae cavae

Answer 7

drains blood from the upper portion of the body

Question 8

inferior venae cavae

Answer 8

carries blood from the lower part of the body

Question 9

tricuspid valve

Answer 9

located between the right atrium and the right ventricle; it has three (tri-) leaflets or cusps (flaps of the valves that for a one-way passage designed to keep the blood flowing in only one direction

Question 10

atrium

Answer 10

upper chamber of the heart

Question 11

ventricle

Answer 11

lower chamber of the heart

Question 12

pulmonary valve

Answer 12

valve positioned between the right ventricle and the pulmonary artery

Question 13

pulmonary artery

Answer 13

artery carrying oxygen-poor blood from the heart to the lungs

Question 14

pulmonary veins

Answer 14

one of 2 pairs of vessels carrying oxygenated blood from the lungs to the left atrium of the heart

Question 15

mitral valve

Answer 15

the valve between the left atrium and the left ventricle; bicuspid valve

Question 16

left ventricle

Answer 16

thickest walls of all four heart chambers (3 times the thickness of the right ventricular wall. Must pump blood with great force so that the blood travels through arteries to all parts of the body

Question 17

aorta

Answer 17

largest artery in the body

Question 18

aortic valve

Answer 18

closes to prevent return of aortic blood to the left ventricle

Question 19

septa (singulair; septum)

Answer 19

partition or wall dividing a cavity

Question 20

interatrial septum

Answer 20

wall between right and left atria

Question 21

interventricular septum

Answer 21

wall between the right and left ventricles

Question 22

endocardium

Answer 22

inner lining of the heart

Question 23

myocardium

Answer 23

muscular middle layer of the heart

Question 24

pericardium

Answer 24

double-layered membrane surrounding the heart

Question 25

visceral pericardium

Answer 25

adhering to the heart

Question 26

parietal pericardium

Answer 26

lining the outer fibrous coat

Question 27

pericardial cavity

Answer 27

between the visceral and the parietal pericardial layers