RESPIRATION 5: Control of Respiration Flashcards
What part of the brain primarily controls breathing rhythm?
Medulla oblongata
What are the respiratory centers in the medulla?
Dorsal Respiratory Group (DRG) and Ventral Respiratory Group (VRG).
What part of the brain modulates breathing patterns during speaking or emotion?
The pons – apneustic and pneumotaxic centers.
What do central chemoreceptors detect?
CO₂ and H⁺ in cerebrospinal fluid.
Where are peripheral chemoreceptors located?
Carotid and aortic bodies.
What does the Hering-Breuer reflex prevent?
Overinflation of lungs during deep inhalation
Can respiration be voluntarily controlled?
Yes – by higher brain centers like the cerebral cortex.
How does the body adapt to high altitude?
By increasing ventilation, red blood cell production, and 2,3-DPG levels.
What happens to blood pH when CO₂ increases?
pH drops – leads to respiratory acidosis.
