1.1 Intro to CVS

Question 1

CVS involved in transport of what ?

Answer 1

• oxygen
• nutrients
• metabolic waste
• heat
• hormones
• drugs
• hydraulic pressure

Question 2

Ficks first law of diffusion tells us what ?

Answer 2

that diffusive flux (= diffusion) is proportional to the concentration gradient

Question 3

Ficks second law of diffusion tells us what ?

Answer 3

how concentration changes as a function of time

Question 4

Ficks law of diffusion useable form ? equation !

Answer 4

check slides 14

Question 5

what is the diffusion coefficient 1. proportional & 2.inversely proportional to ?

Answer 5

1. temperature
2. molecular radius and viscosity of the medium in which diffusion is occuring

Question 6

increasing the surfac area availabel for diffusion affects the rate of diffusion how ?

Answer 6

increases it

Question 7

rate of diffusion is proportional to what ?

Answer 7

the concentration gradient

Question 8

what are the following vessels ?
1. capitance
2. resistance
3. exchange

Question 9

Typical circulating blood volume ?

Answer 9

~ 5 L

Question 10

What ensures that the supply matches the demand in the heart ?

Answer 10

the variable nature of the heart and primarily the arterial system

Question 11

Haemodynamics - the physics and reason of bloodflow

Question 12

distribution of blood flow to different tissues

Question 13

distribution of blood within the CVS