respritory system test
in what form is hemoglobin as it leaves the lungs?
lungs-tissues oxyhemoglobin or O2Hb
what are the advantages of air going through the nasal cavity
1.. musuc membrane filters air, which traps pollen or bacteria 2. nasal cavity warms and moistens air
whts the balanced formula for CO2 and water at the tissues
CO2+H2O=H2CO3-H+ HCO3
internal vs external respiration
internal: between tissues and RBC where gas exchange takes place. External: normal breathing between lungs, alveoli. intake of O2 and release of wastes (ie CO2 and H2O)
if food went down the wrong way what failed to close
epiglottis
whats the voice box
larynx
functions of the pleural memebrane
1. seasl chest cavity from rest of body 2. stops abrasion by letting lungs slide
where is breathing controled from
medulla oblagata in brain
how doe CO2 and O2 enter or leave the bloodstream or lungs?
diffusion
how are alveolis specialized
1. cells r thin for ideal diffusion 2. coating of lipoprotiens for surface tension 3. stretch receptors, tells brain when to inhale or exhale
when you inhale what does the diaphragm and ribs do
diaphgram contract and pushes chest down, ribs go up and out
when you exhale what does the diaphram do, ribs?
diaphragm relaxes, ribs relax and push air out
T/F hemoglobin is a type of carb that carries only CO2
F
T/F lungs inflate because of heir own muscles working
F
T/F strech receptors relay info to the aortic arch
F
T/F carotid bodies contain chemoreceptors for H+ and CO2 levels
T
T/F sinuses are spaces within the skull
T
T/F the carina splits the trachea into right and left bronchus
T
T/F protiens are sensitive to changes in pH and temp
T
T/F carbonic anhydrase carries out chem reactions
T
T/F bronchioles are larger then bronchi
F
T/F the presence of mucus in the trachea and nasal cavities serve no role in the respritory system
F