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Respiratory Systems (Respiratory (External (exchanges gases between blood…
Respiratory Systems
Respiratory
External
exchanges gases between blood-lungs
Inhalation (inspiration)
breath in
Internal
exchanges gases between blood-tissue cells
Exhalation (expiration)
breath out
function
.oxygen in
.carbon dioxides out
Nasal/Paranasal/pharynx/larynx
Paranasal sinuses
epithelial lining
pseudostratified ciliated columnar epithelium
functions
warm/clean/humility and give our voice resonance
features
four pair of sinuses
sphenoid
frontal
maxillary
ethmoid
Pharynx
epithelial lining
.nasopharynx : pseudostratified ciliated columnar epithelium
.oropharynx/ laryngopharynx : stratified columnar epithelium
function
.digestive (swallowing)
.respiratory system
features
tonsils
Nasal cavity
epithelial lining
pseudostratified ciliated columnar epithelium
function
warm/ clean/ moisturize air before reach to lungs
features
conchae
Larynx
.Voice production
.provides open airway
.keep food and air going the correct place
glottis
opening between vocal folds (cords)
vocal fold
produce basic sound of speech
epiglottis
.flap of elastic cartilage
.cover or seal the laryngeal inlet
Trachea
.provide air flow to lungs
.pseudostratified ciliated columnar epithelium
.partial rings of hyaline cartilage
.anterior esophagus
Gross and microscopic bronchial
Bronchi
.air passages into lungs begin at the end trachea
.rings of cartilage fewer,fewer
.pseudostratified ciliated columnar epithelium
.surround with of smooth muscle
Bronchioles
.less than 1mm in diameter ( very small)
.no cartilage
.no cilia
.no goblet cells
.surround with smooth muscle
Air passage
bronchi
bronchioles
terminal bronchioles
respiratory bronchioles
alveolar ducts
alveolar sacs
alveoli
Cells compose of alveolus
Type II alveolar cells
.simple cuboidal epithelium
.produce surfactant ( prevent alveolus sticking when exhale)
Macrophages
eat particles cells
Type I alveolar cells
.simple squamous epithelium
.gas exchanges take in place alveoli
respiratory membrane
.form by alveolar and capillary wall
.simple squamous epithelium
.basement membrance
Respiratory Tract
Respiratory
respiratory bronchioles to alveoli (air sac)
Upper respiratory tract
from nose/mouth to pharynx
Conducting
nose/mouth to respiratory brochioles
Lower respiratory tract
from larynx to alveoli
lung/pleura
lungs
right lung has 3 lobe
left lung has 2 lobe
pleura
visceral pleura
inner layer
pleura cavity
.space between parietal and visceral pleura
.fill with pleural fluid
parietal pleura
outer layer