exam 1 class 9

Question 1

-stops inspiration allows transition of inspiration into expiration
- sends signals to AC
- receives signals from peripheral receptors

Answer 1

pneumotanic center (PC)

Question 2

prolonged breathing
- sends signals to VRG and DRG and trigger them to cause inspiration

Answer 2

apneuistic center (AC)

Question 3

what receives signals from peripheral receptors?

Answer 3

apneuistic center (AC)
and PC

Question 4

sense any change in the pH of cerebrospinal fluid and or interstitial fluid inside the central nervous system

Answer 4

central chemoreceptors (CCR)

Question 5

what sends signals to dorsal respiratory group?

Answer 5

central chemoreceptors

Question 6

what is one function of the dorsal respiratory group?

Answer 6

trigger inspiration

Question 7

what is the second function of the dorsal respiratory group? (DRG)

Answer 7

• receive signals from stretch receptors proprio receptors from central/ peripheral chemoreceptors

Question 8

contains different specialized neurons
- pre-botzinger complex
- botzinger complex

Answer 8

ventral respiratory group

Question 9

• pre-botzinger complex?

Answer 9

pace maker neurons
(pace of breathing)

Question 10

• botzinger complex ?

Answer 10

controls expiration

Question 11

high PCO2 in blood vessels

Answer 11

hypercapnia

Question 12

low levels of PCO2

Answer 12

hypocapnia