33. Chemical Regulation Of Respiration Flashcards
1
Q
O2 , CO2 and H+changes stimulate :-
Location of chemoreceptors:-
Central receptor detect :-
Normal respiratory regulation is :-
Increase in 1. 2. Only ......can cross BBB Combines with .....to form Which splits into :- ......stimulate the central chemoreceptors
………only cross the BBB
……….can only stimulate chemoreceptors
A
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2
Q
Chemoreceptors are sensitive to :- …..in blood
Directly stimulated by :- …….in CSF
A
155
3
Q
Peripheral Chemoreceptors
Stimulus is :- Oxygen sensory in 1. 2. Cells in carotid & aortic bodies is :-
Mechanism :-
Hypoxia inhibits :-
Release of :-
NT used by glomus cell to signal hypoxia :-
Increase CO2 in blood stimulates :-
Decrease O2. in blood stimulates :-
Both leads to increase in :- ,…..in CSF
Common stimuli to activate both chemoreceptors
1.
2.
A
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4
Q
Chemoreceptor Activation by
1.
2.
3.
Leads to :-
Stimulate :-
Chemoreflex :-
Effect :- HYPERVENTILATION
CO2 washout :-
1.
2.
3.
A
157
5
Q
Types of hypoxia 4 types 1. 2. 3. 4.
A
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6
Q
Hypoxia hypoxia Fall in :- Less :- Stimulate :- Seen in :- Rx :-
A
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7
Q
Anemic hypoxia :- Seein in 1. 2. Decrease in :- Dissolve O2 :- PO2:- Not stimulated :-
A
158
8
Q
Stagnant hypoxia Seen in :- Aka :- Due to :- O2 in veins :- Arterio Venus O2 difference :- Cyanosis :-
A
158
9
Q
Histotoxic hypoxia Causes :- Defect in :- Cyanide inhibits :- Arteriovenous O2 difference :- Maximum stimulation of :
A
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