cardiovascular system

Question 1

of the lung is indeed its tip’its rounded most superior portion

Answer 1

apex

Question 2

he 5 bones that make up the skull

Answer 2

base

Question 3

the membrane enclosing the heart

Answer 3

pericardium

Question 4

each of the two upper cavities of the heart from which blood is passed to the ventricles

Answer 4

atria

Question 5

each of the two main chambers of the heart, left and right

Answer 5

ventricles

Question 6

the wall of tissue that separates the right and left atria of the heart

Answer 6

interatial septum

Question 7

a large vein carrying DE-oxygenated blood into the heart

Answer 7

superior venae cavea

Question 8

a large vein that carries deoxygenated blood from the lower and middle body into the right atrium of the heart

Answer 8

inferior venae cavea

Question 9

the artery carrying blood from the right ventricle of the heart to the lungs for oxygenation.

Answer 9

pulmonary arteries

Question 10

a vein carrying oxygenated blood from the lungs to the left atrium of the heart.

Answer 10

pulmonary veins

Question 11

the main artery of the body, supplying oxygenated blood to the circulatory system

Answer 11

Aorta

Question 12

are those that connect the atrium to the ventricles and include the mitral valve as well as the tricuspid valve

Answer 12

atrioventricular valves

Question 13

permits blood to flow one way only, from the left atrium into the left ventricle

Answer 13

bicuspid valves

Question 14

that is situated at the opening of the right atrium of the heart

Answer 14

tricuspid valves

Question 15

colloquially known as the heart strings, are cord-like tendons that connect the papillary muscles to the tricuspid valve and the bicuspid valve in the heart

Answer 15

chordae tendineae

Question 16

each of a pair of valves in the heart, at the bases of the aorta and the pulmonary artery, consisting of three cusps or flaps that prevent the flow of blood back into the heart

Answer 16

semi lunar valves

Question 17

an artery supplying blood to the heart.

Answer 17

coronary arteries

Question 18

runs in the coronary sulcus between the right atrium and ventricle and opens into the right extremity of the coronary sinus

Answer 18

cardiac veins

Question 19

a wide venous channel about 2.25 centimeters in length that receives blood from the coronary veins and empties into the right atrium of the heart.

Answer 19

coronary sinus

Question 20

a small body of specialized muscle tissue in the wall of the right atrium of the heart that acts as a pacemaker by producing a contractile signal at regular intervals

Answer 20

sinoatrial node

Question 21

are a unique cardiac end-organ

Answer 21

purkinje fibers

Question 22

is a small device that’s placed in the chest or abdomen to help control abnormal heart rhythms

Answer 22

pacemaker

Question 23

the phase of the heartbeat when the heart muscle contracts and pumps blood from the chambers into the arteries.

Answer 23

systole

Question 24

the phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood.

Answer 24

diastole