(16) Control of Ventilation Flashcards
THIS IS THE LEXICON - check out if you so desire
(Summary of Ventilatory Control: Four Levels of Regulation)
- What are they
- Brainstem control of regulation
- joint and muscle stretch receptors
- central and peripheral chemoreceptors
- pulmonary stretch and irritant receptors
(Brainstem Control of Breathing)
- What is the main thing that controls breathing in the brain stem?
- Does apneustic center stimulate or inhibit the inspiratory center?
- the pneumotaxic center?
- the inspiratory center
- stimulate
- inhibits
(Chemoreceptors)
- What are the two types of chemoreceptors?
- What does peripheral detect?
- What does central detect?
- What nerves do they travel through (peripheral)?
- Where do they send their info?
- peripheral and central
- O2, CO2, H+
- H+
- CN IX and X (only peripheral)
- inspiratory center
look at this a little
(Brain Stem)
give me the order
3 to 1 to 2
medullary respiratory center, apneustic center, pneumotaxic center –> phrenic nerve –> diaphragm, external intercostals
(Central Chemoreceptor Response to pH)
look at this figure (on your ipad)
What is the central regulator of this?
- carbonic anhydrase
(Peripheral Chemoreceptor Response to pH)
- Where are these located?
- What do they detect?
- What are signals transmitted by?
- Breathing rate is increased by what?
- carotid and aortic bodies
- O2, CO2, and H+
- CN IX and X
- low PO2, high PCO2 and high H+
(Activation of Pulmonary Mechanoreceptors)
What occurs in the Hering Bruer Reflex?
- when stimulated by distension of the airways and lungs, mechanoreceptors initiate a relfex decrease in breathing reate called the Hering Breur reflex (he told us to read about this)
he kind of skipped over these slides - so look at them if you feel like it - he said something about another one of the teachers that was going to talk about it or somtething - photos on you IPAD
