1What are the 3 methods of transport for CO2?
Dissolved 7-10%
bound to hb 20-30%
Bicarbonate ions 60-70%
2What is the name for hb bound to CO2?
carbaminohemoglobin
3What is the catalyst for the reaction in bicarbonate ions?
carbonic anhydrase
4What is the Haldane effect?
The effect of decreased PO2 and hb saturation = higher affinity for CO2
5What is the Bohr effect?
The effect of pH on O2 affinity to hb
6What are the 3 types of controllers of ventilation ?
Sensors
central controller
effectors
7What are the 4 receptors ?
Centeal chemoreceptors
Peripheral chemoreceptors
stretch receptors
Irritant recceports
8What do the central chemoreceptors do and where are they found?
Respond to changes in pH, VENRTRAL surface of medulla
9What is hypercapnia>
Increase in rate and depth of breath
10What are the Peripheral receptors?
increased vent due to artieral hypoxia
carotid sinus 9
aortich arch 10
11What are stretch receptors?
also called barorecpetors, keeps lung from overfilling, stimulates inspiratory muscles
12What are the two parts of the central controller and what are there rolls?
Ventral respiratory group (VSG) = Eupnea - (12-15 bpm) pacemaker
Dorsal respiratory group (DSG) = receives it for from peripheral receptors and modifies VRG based on info
13What is the pontine respiratory center?
Pneumotaxic center = controllable
Apneustic center = automatic