A&P II Lecture review Circulatory System (Part 4)
The movement and force generated by cardiac contractions
Define ejection fraction.
The % of EDV represented by stroke volume
What is the formula for stroke volume (SV)?
SV=EDV - ESV
Define cardiac output.
The volume pumped by the left ventricle in one minute
What is the formula for Cardiac output?
CO = HR x SV
What factors affect cardiac output?
Your heart rate is adjusted by what?
Autonomic nervous system
Stroke volume is adjusted by what?
When sympathetic and parasympathetic fibers from the medulla oblongata(cardiac centers) affect heart rate it is known as what?
What effect do sympathetic neurons have on heart rate?
It increases it
What effect do parasympathetic neurons have on heart rate?
Blood pressure is monitored using what?
Arterial oxygen and carbon dioxide levels are monitored using what?