3.1 - Systemic Tissue Perfusion (Blood flow and pressure) Flashcards
1
Q
What are the 2 parts of the circulatory system?
A
Pulmonary Circulation & Systemic Circulation
2
Q
What kind of pressure is flowing through pulmonary circulation?
A
low pressure
3
Q
What kind of pressure if flowing through pulmonary circulation?
A
high pressure
4
Q
This is the amount of blood ejected by the heart with each contraction
A
Stroke volume (SV)
5
Q
SV is influenced by cardiac muscle contractility and _______ and ________
A
preload, afterload
6
Q
How do you calculate SV?
A
SV = EDV - ESV
7
Q
The amount of blood the heart pumps per minute
A
Cardiac Output (CO)
8
Q
How do you calculate CO?
A
CO = SV X HR
9
Q
The percentage of blood ejected from heart during systole
A
Ejection fraction (EF)
10
Q
What is normal ejection fraction?
A
Normal is > or equal to 55%
