lecture 17

Question 1

what are the roles of c02 in the transport of it in blood

Question 2

pie chart?

Question 3

i mean you can learn the equations

Question 4

c02 aand o2 uptake and release at the tissues

Answer 4

carbon dioxide generated from respiring tissues, this will go across from the tissues into the capillaries and some co2 will be dissolved in plasma, co2 will also diffuse down its diffusion gradient into the red blood cell, some will be dissolved into aqueous form

co2 will combine with water to form carbonic acid, that then will dissociate into bicarbonate + hydrogen ions, bicarbonate move with concenration gradient and put out of the rbc into the plasma, this causes a disturbance in the membrane potential of the rbc, it becomes more positiev on the inside and attracts negatively charged ions such as cl- (this processe is called maintaining electroneurality).

hydrogen ion that is left over creates an acidic environemnt and the haeomoglobin drops the oxygen, we have acidifed hb which combines with co2 to form cabamino protein

Question 5

describe the haldane effect

Answer 5

i think hes going to ask about htis one

Question 6

ummm opposite graph/

Answer 6

draw both

Question 7

types of resp chemoreceptors?

Question 8

location and projection of carotid chemoreceptors?

Question 9

location of peripheral chemoreceptors

Question 10

how do peripheral chemoreceptors work?

Question 11

what stimulates peripheral chemorecetors

Answer 11

s

Question 12

describe the power of the peripheral chemorecetor reflect

Question 13

location of central chemoreceptors

Question 14

how do central chemoreceptors work?

Question 15

ventilator response to hercapnia?

Question 16

interaction between the two chemoreceptors