Overview of the Function of the Cardiovascular System

Question 1

What are the bulk flow functions of the cardiovascular system?

Answer 1

Gas, nutrient, metabolites, hormones and heat transportation/transfer

Question 2

How is the CV flexible?

Answer 2

Pump can vary output and vessels can redirect and store blood

Question 3

How many times does the heart beat in an average 70 year life?

Answer 3

2.5 billion times

Question 4

How are pumps arranged in the CV system?

Answer 4

In series

Question 5

How does the serial nature of the pumps of the CV relate to their outputs?

Answer 5

Outputs must be equal

Question 6

How are most vascular beds arranged in the CV system?

Answer 6

in parallel

Question 7

Why is the parallel nature of vascular beds beneficial?

Answer 7

All tissues get oxygenated blood

Question 8

What is the equation to calculate pressure difference of the CV system?

Answer 8

Mean arterial pressure - Central venous pressure

Question 9

How does flow relate to pressure difference?

Answer 9

Flow = Pressure difference / Resistance

Question 10

Which organs receive a higher proportion of oxygen then their proportion of cardiac output?

Answer 10

Brain, heart, abdominal organs