respiratory system
passages that fileter incoming air adn transport it in to the body, lungs and microscop
respiration process
exchanging gases btw atmostpher and body cells
process of respiration
ventilation
external respiration
transport of gases
internal respiration
cellular respiration
aerobic reactions of cellular re psiration
ATP production
carbon di oxide gernation forming carbonic acid
gas exchange, oxygen and carbon dioxide
occur at cellular and molecular levels
upper respiratory tract
nose
nasal cavity
sinuses
phyarnx
lower respiratory tract
larynx
trachea
bronchial tree
lungs
nasal cavity
cilia
epithelial cells
goblet cells
larynx
enlargement airway superior to trachea inferior to pharynx
bronchial tree
branched airways from trachea to microscopic air sacs in lungs
branches bronchial tree
right left primary bronchi
secondary lobar bronchi
tertiary segmental bronchi
intralobular bronchioles
terminal bronchioles
respiratory bronchioles
alveolar ducts
alveolar sacs
alveoli
alveoli provides
vital process of gas exchange twn air and blood
right left lungs
soft spongy cone shaped organs in th oracic cavity
right lung
3 lobes
left lung
2 lobes
breathing mechanism
breathing or ventilation
ventilation
movement of air from outside b ody to brochial tree and alveoli
actions of air movements
inspiration/inhalation, expiration/exhalation
inspiration
atmospheric press weight of air is force that moves air into lungs
expiration
force responsible for normal resting expiration form elastic recoil of lung tissues and from surface tension
non respiratory air movements
coughing, sneezing express emotiions, laughing, crying. air movements other than breathing
respiratory muscles
can be controlled
rhythmic normal breathing
involuntary act continues when person unconscious
respiratory membrane
bulk of wall alveolous consists of lalyer of simple squamous epithelium type I cells
carbon dioxide transport
blood flow through capillaries
high Pco2
CO2 transported to lungs
asCO2 dissolved in plasma
as part of compound with hemoglobin
as part of bicarbonate ion