Topics 7 + 8 - Starling Preparation (Venous Return & Total Peripheral Resistance)

Question 1

Which program do you open for this simulation?

Answer 1

STARLING

Question 2

What should the time window be for the starling simulator?

Answer 2

24

Question 3

How do you highlight a cycle?

Answer 3

Left click and right click

Question 4

What do you do after highlighting the cycle to find out the ejection fraction?

Answer 4

ANALYSIS

Question 5

What should you do after changing the venous return?

Answer 5

REDRAW, highlight, ANALYSIS

Question 6

What is the equation of ejection fraction?

Answer 6

EF = SV / EDV

Question 7

Explain frank starling

Answer 7

Sarcomeres stretch due to EDV ↑
↓
More possible cross-bridge formations
↓
More cross bridges = contractility ↑

Question 8

What is the effect of increased venous return on the ejection fraction? (Preload)

Answer 8

VR ↑
↓
EDV ↑
↓
Frank Starling activated
↓
Contractility ↑
↓
SV ↑↑↑↑

↑↑↑ EF = SV ↑↑↑↑ / EDV ↑

Question 9

What is the effect of increased total peripheral resistance on the ejection fraction? (Afterload)

Answer 9

TPR ↑
↓
ESV ↑
↓ FILLING
EDV ↑↑↑
↓
Frank Starling activated
↓
SV ↑

↓↓↓ EF = SV ↑ / EDV ↑↑↑↑