Respiratory Regulations Flashcards
(16 cards)
What controls respiration transitioning
PNEUMOTOXIC CENTER
What Controls prolonged inspiration
APNEUSTIC CENTER
What is the pacemaker of respiration (respiratory rate)
PROBOTEINGER COMPLEX
Factors influencing Central Chemoreceptors
- PaCO2
- pH caused by CO2
Factors influencing Peripheral chemoreceptors
- PaO2
- pH caused by metabolism
- PaCO2
What are the peripheral chemoreceptors
- Carotid bodies
- Aortic bodies
Carotid bodies are innervated by
Cranial nerve IX (Glossopharyngeal nerve)
Aortic bodies are innervated by
Cranial nerve X (vagus nerve)
Where are respiratory stretch receptors located
- Visceral Pleura
- Bronchi & Bronchioles Smooth muscles
What is the HERING BREURER REFLEX
Reflex stimulated by stretch receptors through vagus nerve to the medullary & pons respiratory centers to ultimately inhibit inspiration and begin expiration
Juxtacapillary Receptors in the alveoli
- Stimulate Rapid and shallow Breathing
RECEPTORS THAT CAN STIMULATE RESPIRATORY CENTERS
Central Chemoreceptors
Peripheral chemoreceptors
Stretch receptors
Irritant receptors (eg sneeze)
Proprioreceptors (eg exercise)
Hypothalamus
PONTINE RESPIRATORY CENTER consist of;
- APNEUSTIC CENTER
- PNEUMOTOXIC CENTER
What are the primary muscle for inspiration
Diaphragm & external intercostals
What are the primary muscle for expiration
Which respiratory center in the brain stem is responsible for setting basic breathing rhythm
Medullary respiratory center
