Resp control and sleep Flashcards
path of a feedback loop
contoller>output>effector>feedback>sensor>input>controller
what happens in pos feedback loop
controller will further augment the effector > runaway behavior
what happens in neg. feedback loop
controller will reduce the effector > stabilizes and promotes equilibrium
what is receptor, controller and effector of resp
receptor - sensors
controller - brain
effector - muscles
what are 3 areas of medulla and what do they control
- ventral - expiration
- dorsal - inspiration
- botzinger area - pacemaker
2 areas of pons and what they do
- apneutic area - exitatory - stims dorsal medulla
2. pneumotaxic area - regulates length of breath
what does the cortex do?
give and override system
what does limbic system do?
involved in emotional response
what are the 2 main classes of receptors
- chemoreceptors
2. lung receptors
2 locations of chemoreceptors
- central - medulla
2. peripheral
2 locations of peripheral chemorec
- aorta
2. carotid body
3 types of lung receptors
- stretch
- irritant
- J
what do central chemoreceptors detect and how
pCO2 through H+ passing blood brain barrier
what do carotid chemoreceptors respond to and how (3)
- PaO2 - if low more vent
- PaCO2 - if high more vent
- pH - if low more vent
what do aortic chemoreceptors respond to
paO2 and paCO2
