Final Flashcards
(240 cards)
What does the chest do in pigeon chest?
Atrial or septum deficits
Severe asthma
What happens to the chest in barrel chest?
Inc in anterior posterior and medial lateral diameter
Diaphragm over stretched
What level of pleura does cystic fibrosis affect?
Visceral one covering the lungs
The upper lobes superifical markings are
1-6 ribs
The lower ribs superifical marking are
4-6 rib
What is pulmonary circulation?
Allows deoxygenated blood to lungs and oxygenated blood to heart
What is bronchial circulation?
Deliver nutrients, and blood to lungs itself
What is the phsyiological function of the pulmonary system?
Exchange of gas between blood and atmospheric gas
What is the dorsal respiratory group(drg)?
Controls quiet breathing
Stim diaphragm to inhale
Primary inspiratory neuron
What is the venteral respiratory group(vrg)?
Stimulates the drg
Responsible for inspiratory and expiratory
What is the pons pneumothorax center?
Inhibit inspiration
What is the pons apneumatix center role?
Promote rhythmic respiration
Connect to drg
What do centeral chemoreceptors sense?
CO2 levels in blood
Inc CO2 inc breathing
Ant do peripheral chemoreceptors sense?
Senses O2 in blood
Dec PO2 from aortic and carotid bodies, stim drg, inc respiration
What is the hypoxic drive?
Become a CO2 retainer
Overstim centeral chemoreceptors so shut off
Peripheral chemoreceptors take over
Shift from CO2 to O2
What is compliance?
Ease in which lungs can inflate and deflate during inspiration
What is ventilation?
Process in which air moves in and out
What is diffusion and what is it dependent on?
Passive tendency for molecules to move from high to low
Dependent on surface area, thickness, pressure, reactivity
What is perfusion and what is it dependent on?
Blood within pulmonary circulation
Dependent on gravity, r vent ejection, pulm vascular resistance
Which lung zone is not dependent on gravity?
One the apex
What lung zone is gravity dependent and receives constant blood flow?
Three the base
What type of patient is ventilation decreased in?
Pulmonary pt
What type of pt is perfusion decreased in?
Cardiac pt
What are the characteristics of peripheral stenosis?
Purple or blue nail beds