CVR Flashcards
4 major functions of the Circulatory system
transportation, temp regulation, immune system, wound care
pericardium
protective, more outside layer, doesn’t touch heart, not directly related, CT
epicardium
3rd inner, actually touches heart, apart of it. fatty, holds blood vessels that supply to heart.
myocardium
2nd inner, muscle part of heart, generates force.
endocardium
most inner, smooth transition for blood, from ventricles to arteries. take roughness out.
Pericardial space
between pericardium and epicardium
what is max heart rate
200
brachycardia number
below 60
tachycardia
above 100
order of importance of 3 heart rate conditions
fibrillation, tachy, brady
The average cardiac output is how many liters per minute
5.5 liters
the average total blood volume a person has is how many liters
5.5 liters
what are the 4 layers of the arteries and veins
- tunica externa/adventitia – CT and elastic layer
- tunica media – smooth muscle
- Tunica interna/intima – CT and elastic layer
- endothelial
what layer do capillaries have
endothelial
3 types of capillaries
continuous - in endothelial layer
fenestrated
discontinuous – found in liver