Have a Heart power point Flashcards
Function of the Circulatory System
- delivers oxygen, nutrients and hormones to various tissue of the body
- transports waste products to the appropriate waste removal system
Meaning of Cardiovascular
pertainign to the heart and blood vessels
What is the heart
a hollow muscluar organ that provides the power to move blood through the body
Location of the heart
in the mediastinum
(the space betweent the lungs)
Pericadium
double-walled membrane that surrounds the heart
-peri- (around)
the 2 layers of the pericardium
- fibrous layer
- serous layer
Pericardial space
space between the 2 serous layers of the pericardium
- contains pericardial fluid
The 3 walls of the heart
- epicardium
- myocardium
- endocardium
Epicardium
external layer of the heart
Myocardium
middle layer of the muscles in the heart
Endocardium
inner layer of the muscles of the heart
Coronary occlusion
blockage of the coronary vessels
- may lead to ischemia
Ischemia
deficiency in the blood supply to an area
- may lead to necrosis
Infarct
an area of necrosis caused by an interrupted blood supply
Atria
s/ atruim
the superior chambers of the heart
