negative feedback of Cardiovascular system

Question 1

What is blood pressure?

Answer 1

the pressure exerted on the walls of arteries

Question 2

what is MAP?

Answer 2

mean arterial pressure (the average blood pressure in 1 cardiac cycle)

Question 3

How do you estimate MAP?

Answer 3

[(2xdiastolic)+sytolic] / 3

Question 4

What is the normal range for MAP?

Answer 4

70-105

Question 5

Cardiac Output X Total Peripheral Resistance =?

Answer 5

MAP

Question 6

Why must MAP be regulated?

Answer 6

so that it is high enough to perfuse internal organs but not too high that it damages vessels or strains the heart

Question 7

What is cardiac output?

Answer 7

the volume of blood pumper per minute by each ventricle. (stroke volume x heart rate)

Question 8

Which vessels have the largest resistance?

Answer 8

arterioles

Question 9

What is total peripheral resistance?

Answer 9

the sum of all peripheral vasculature in the systemic circulation

Question 10

what controls TPR?

Answer 10

noradrenaline which relies in sympathetic discharge

Question 11

so an increase in sympathetic discharge = increase in vasomotor tone =increase TPR =..?

Answer 11

vasoconstriction

Question 12

if blood pressure decreases then there is a decrease or increase in baroreceptor discharge?

Answer 12

decrease