heart anatomy

Question 1

what are the 2 layers of the heart

Answer 1

fibrous pericardium
serous pericardium

Question 2

this layer of the pericardium is tough, the outermost layer, prevents overdistension, and helps anchor the heart

Answer 2

fibrous pericardium

Question 3

this layer of the pericardium is made up of the parietal and visceral layers

Answer 3

serous pericardium

Question 4

describe the two layers of the serous pericardium

Answer 4

parietal: lines inside, fibrous
visceral: “epicardium”, covers heart surface

Question 5

space between parietal and visceral layers

Answer 5

pericardial cavity

Question 6

fluid in pericardial cavity, slick

Answer 6

pericardial fluid

Question 7

describe pericarditis

Answer 7

inflammation causes increased fluid build up. the fibrous layers of the heart will not expand which compreses heart and leads to cardiac tamponade

cardiac tamponade: extra fluid builds up in the space around the heart. This fluid puts pressure on the heart and prevents it from pumping well.

Question 8

name of cardiac muscle

Answer 8

myocardium

Question 9

cell to cell connections

Answer 9

intercalated discs

Question 10

electrical bridges for communication

Answer 10

gap junctions

Question 11

“spot welds” for reinforcement bewteen cardiac cells. increase and promote structural integrity

Answer 11

desmosomes

Question 12

innermost cardiac tissue lining, smooth, and low friction

Answer 12

endocardium