intro to the heart

Question 1

the heart is a ___ muscular organ that’s the size of what and is located between what?

Answer 1

hollow, fist and lungs

Question 2

the apex (tip) is pointed towards?

Answer 2

left hip

Question 3

the pericardium or ___, is composed of?

Answer 3

outer layer, 2 layers

Question 4

the epicardium is what?

Answer 4

a thin layer lining the heart chambers

Question 5

the function of fibrous pericardium?

Answer 5

provides protection & anchors the heart in place

Question 6

serous pericardium (made of parietal & visceral) does what?

Answer 6

produces lubricating fluid

Question 7

what layer of the heart is the thickest and why?

Answer 7

myocardium b/c it has twisting bundles of cardiac muscle to provide contractions

Question 8

describe the pulmonary circuit

Answer 8

carries blood from the heart to the lungs & back, picks up 02 & releases CO2,

Question 9

describe the systemic circuit

Answer 9

moves blood b/w the heart to the rest of the body