Respiratory Control DSA Flashcards
Hypoxemia
Low Oxygen in Blood
Describe frequency of breathing (2x)
Length of inspiration or expiration
How many times a min
Minute Ventilation equation
V.e = f x Vt
List components of Medullary Respiratory Center
1) Dorsal respiratory Group (anatomically part of NTS)
2) Ventral Respiratory Group (anatomically nucleus ambiguous and Retroambigualis)
3) Pontine Respiratory Group (PRG)
4) Pre-Botzinger Complex
Describe the flow for generating Respiratory Rhythm
1) Determine timing
2) Determine Depth
3) To Motoneurons
Which brain region controls timing?
Pre-Botzinger Complex
___ begins to generates respiratory rhythm and is known as Central Pattern Generator
Pre-Botzinger Complex
Function of Pontine Respiratory Group
Decides how long inspiration and expiration are
Lesion to Pontine Respiratory Group leads to _____ which is known as _____.
1) Increased Inspiratory Time
2) Apneusis
When PRG is lesioned we lose ability to turn inspiration off w/o additonal sensory informtion from the ___ nerve
Vagus
Which two Medullary Centers affect timing
1) Pre- Bot: Rhythm
2) PRG : How long inspiration is
DRG function
Depth of Breathing
Rostral VRG Function
1) Premotor to Phrenic
2) Other Inspiratory Muscles
Caudal VRG Function
1) Premotor to upper airway
2) Expiration musces
Which Two medullary centers effect depth (Vt)
DRG
VRG
