Phys 5 respiratory control

Question 1

this is a recording from where?

brain controls the what?

Answer 1

Question 2

what is the controller for respiratory control?

Answer 2

Question 3

Answer 3

Question 4

In Vt and f which one do we figure out first?

Answer 4

Question 5

what does the Pre-botzinger complex do?

Answer 5

Question 6

What also contributes to breathing timing?

Answer 6

transition from inspiration to expiration is important in frequency

Apneusis: failure to turn off inspiration stuck in inspiration (like holding your breath)

Question 7

What contibutes to depth?

Answer 7

Question 8

DRG

Answer 8

Question 9

VRG

Answer 9

Question 10

summary of what determines timing and depth

and they go to act on?

Answer 10

Question 11

Location

and

Function

Answer 11

Question 12

Answer 12

Question 13

what are the controlled variables?

what is the sensor?

Answer 13

Question 14

chemoreceptor is what?

sensitive to what?

changes in concentrations will change firing rate how?

Answer 14

Question 15

Answer 15

Question 16

Chemoreceptors do what in hypoxia or hypercapnia?

what are the sets of chemoreceptors?

Answer 16

Question 17

Central chemoreceptors?

sensitive to what?

located where?

Answer 17

Question 18

peripheral chemoreceptors?

located where?

sensitive to?

Answer 18

Question 19

Peripheral chemoreceptors will cause what?

Answer 19

Question 20

what is the sensor if the controlled variable is lung volume?

Answer 20

Question 21

pulmonary-stretch receptors are important for controlling respiration in?

Answer 21

Question 22

What two sets are involved in protecting the gas exchange surfaces?

Answer 22

Rapidly adapting pulmonary stretch receptors

The J (juxtacapillary) receptors

Question 23

Rapidly adapting pulmonary stretch receptors

located?

sensitive to?

fibers travel where? in?

effect?

Answer 23

Question 24

the J receptors

located where?

sensitive to?

fibers travel where? in?

effect?

Answer 24

Question 25

Rapid (RAR) and J receptors are important why?

Answer 25

Question 26

cortical influence on breathing?

Answer 26

Question 27

What helps the central chemoreceptors detect the CO2 that has crossed the BBB

Answer 27

In the CSF carbonic anhydrase helps change CO2 and H2O into H2CO3

Question 28

If CO2 is low and O2 is low what happens?

Answer 28

Peripheral chemoreceptors will win it out since more sensitive to low O2 than low CO2.

Central chemoreceptors will accept the lower CO2 this is done by altering the CSF.

CSF pH will be adjusted to normal by addition of more H+ or less HCO3- by choroid plexus

HCO3- is moved to the blood (to prevent process from stopping)

Question 29

high CO2 and low O2

Answer 29

leads to respiratory acidosis as well as acidifying the CSF.

choroid plexus will add more HCO3- in CSF H+ moved back to the blood

this keeps pH normal so neurons function and keeps a higher than normal PaCO2 as normal