Lecture 9 Regulation of Cardiac Output

Question 1

ESPVR

Answer 1

• End Systolic Pressure Volume Relationship
• Point at which all of the PV loos must touch the curve at their point

Question 2

EDPVR

Answer 2

• ## End Diastolic Pressure Volume Relationship

Question 3

What is stroke volume?

Answer 3

SV = EDV - ESV
- Amount of blood pumped by 1 ventricle in 1 contraction

Question 4

What is Cardiac Output?

Answer 4

CO = HR x SV
- Amount of blood pumped per ventricle per unit time
- about 5L/min (about 70 beats/min) (70ml/beat)
- Normal blood volume is 5L

Question 5

What is Cardiac Reserve?

Answer 5

Difference between resting and maximal CO