control of respiration

Question 1

CNS controls breathing

Answer 1

spontaneous due to nerve impusles

Question 2

transection where leads to no breathing

Answer 2

C1- phrenic origin

Question 3

autonomic control

Answer 3

medullary centers, VRG and DRG, generate rhythm

Question 4

DRG

Answer 4

insipriatory neurons, ramp signal, phrenic N synchronous

Question 5

what innervates diaphragm

Answer 5

phrenic n

Question 6

DRG output

Answer 6

diaphragm: phrenic

Question 7

DRG input

Answer 7

peripheral cardiopulmonary sensors

Question 8

VRG

Answer 8

bozinger complex is pacemaker to DRG

Question 9

lower VRG

Answer 9

insp (signal to DRG) and exp (exercise)

Question 10

output VRG

Answer 10

carnival n (upper airway resp), spinal cord, caudal (expiratory)

Question 11

quiet breathing

Answer 11

pre box complex» insp DRG» RAMP»VRG and DRG insp. firing stops, muscles relax, passive exp

Question 12

forced breathing

Answer 12

expiratory in VRG,

Question 13

inputs to DRV/VRG

Answer 13

pontine or cortex

Question 14

pontine

Answer 14

pons regulates medullary output

Question 15

apneustic center

Answer 15

lower pins. excvitaroty, increase ramp

Question 16

pneumotaxic

Answer 16

upper ons, switch off insp, control insp volume

Question 17

context input

Answer 17

higher brain centers, coordinating breathing, NOT ABSOLUTE

Question 18

neural modulation

Answer 18

peripheral chemoreceptors, central chemoreceptors, mechanoreceptors, irriatants

Question 19

peripheral chemoR

Answer 19

aortic/carodit

Question 20

central chemo

Answer 20

medulla, sensory input to DRG, css ph… tells CO2 level