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Jacklinlako.respiratorysystem.pdf (nasal cavity (Paransal sinuses…
Jacklinlako.respiratorysystem.pdf
Conducting
respiratory- bronchioles to aveoli
upper respiratory tract nose to the pharynx
lower respiratory tract larynx to the aveoli
conduction- nose & mouth to respiratory bronchioles
nasal cavity
epithelial lining
psedostratified dilated calomter epithelium
function
to clean, warm, humidity the incoming air
features
conchae --> create tubulence- to increase contact of incoming air with mocosa membrane
Paransal sinuses
features
maxillary, ethmoid, sphenoid, frontal bone epithelial lining
epithelial lining
pseudostratified ciliated culomner epithelium
function
clear warm, humidify the incoming air
gives voice resonance
Pharynx
epithelial lining
psedostratified ciliated culomnar epitheium
innosopharynx
simple squamous in orpharynx and laryngipharynx
function
passageway for food air and drink
features
tonsils, pharynx
Respiration
inhalation- inspiration breathing in
exhalation- expiration moving around of lungs
External- exchange of gases (oxygen & carbon dioxide) between lungs and blood
major function of respiratory system- exchange of gases (oxygen in & carbon dioxide out)
Internal- exchange of gases (oxygen and carbon dioxide) between blood vessels and tissue cells
larynx
function
voice production
provides open airway
makes air and food go to the correct place
glottis
epiglottis
vocal folds
trachea
function
passageway for air to get to the lungs
epithelial lining
psedostratified ciliated culmonar epithelium
anterior to esophagus
features
patral rings of cartilage
Bronchi
~ Large -> smaller
~ have cartilage
~ pseudostratified ciliated culomnar epithelium
~have smooth muscle wrapped around the tube
~Parasumpathetic contract the muscle
Sympathetic relax the muscle
Bronchioles
~ < 1 mm in diameter
~ no cartilage
~ no cilia, no mucus
~pseudostratified columnar epithelium
~have smooth muscle
Alveolus
~ type 1 alveolar cell
~type two alveolar cell
~macrophages
Respiratroy membranes
exchange of gases (oxygen in &carbon dioxide out )
Lung
parietal pleura- covers the wall and organ of the thorasic cavity can be removed
viscreal pleura cavity lungs and cant be removed