Pressure

Question 1

Result of parasympathetic impulses along vagus nerve

Answer 1

Decreased heart rate

Question 2

What occurs when extracellular fluid increases

Answer 2

Increased blood pressure

Question 3

How does suction move fluid

Answer 3

Uses negative pressure where atmospheric pressure pushes the fluid in the direction of the negative pressure

Question 4

Compare blood pressure in arms to legs, why is this

Answer 4

Blood pressure in legs is increased by hydrostatic pressure due to the ‘head of blood’ contacted in the vessels

Question 5

What is colloid osmotic pressure

Answer 5

Osmotic pressure due to plasma proteins

Question 6

Formula for MAP

Answer 6

cardiac output x peripheral resistance

Question 7

What is peripheral resistance

Answer 7

Resistance of the arteries to blood pressure

Question 8

Does stroke volume effect peripheral resistance

Answer 8

No

Question 9

What does the cardiovascular centre of the brain contain

Answer 9

The cardiac centre and vasomotor centre

Question 10

Three hormones that regulate blood pressure

Answer 10

Angiotension II, ADH and ANP

Question 11

What does a diastolic reading of 80mm Hg mean

Answer 11

is 80mm Hg greater than atmospheric pressure

Question 12

If an artery doubles its radius what happens to blood volume flow rate

Answer 12

Will be sixteen times the original value

Question 13

Does turbulent flow exist when blood is flowing in smooth streamlines

Answer 13

No

Question 14

What is turbulent flow

Answer 14

Flow where the fluid undergoes irregular fluctuations