Please enable JavaScript.
Coggle requires JavaScript to display documents.
BrendaBarckRespiratorySystem.pdf (Gross/Microscopic Anatomy (Nasal Cavity,…
BrendaBarckRespiratorySystem.pdf
Major Function
supplying the body with oxygen and disposes of carbon dioxide. exchange of these two in and out
Terms
Respiration
Internal-exchange of gases between blood and tissue cells
External-exchange between lungs and blood
Inhalation
inspiration-breath in!
Exhalation
dont expire! breathing out
Anatomy of the Respiratory Tract
Conducting
nose and mouth to respiratory bronchioles
Respiratory
respiratory bronchioles to the structures in between to alveoli (alveolus-air sac)
Divisions
Lower Respiratory Tract
larynx to the alveoli
Upper Respiratory Tract
nose/mouth to the pharynx
Gross/Microscopic Anatomy
Nasal Cavity
Features-conchae (creates turbulence)
Function-cleans air, warms and humidifies
Epithelial lining is P.C.C.E
Paranasal Sinuses
Features-open space: maxillary, ethmoid, sphenoid, frontal
Function-gives our voice resonance, warms, cleans, and humidifies before going anywhere else
Epithelial lining is P.C.C.E
Pharynx
Features-tonsils, nasopharynx, oropharynx, laryngopharynx
Epithelial lining is P.C.C.E in nasopharynx and stratified squamous in the oropharynx and laryngopharynx
Function-passageways
Larynx
Function-voice production, provides and open airway, keeps food and air going to correct way
Glottis and Epiglottis-openings between vocal folds (cords)
Trachea
Function-passageway for air to the lungs
consists of partial rings of hyaline cartilage, anterior to the esophagus, has P.C.C.E
Bronchial Tree
Bronchi
rings of cartilage, as it gets smaller there are fewer and fewer pieces of cartilage. P.C.C.E
Bronchioles
< 1 mm in diameter. no cartilage, no cilia, no goblet cells-simple columnar
Alveolus
Type I alveolar cells
simple squamous, 'cobweb' capillaries
Type II alveolar cells
cuboidal, produce surfactant-liquid that coats the inside, prevents the alveoli from sticking together when inhaling
Macrophages
remove the particles not trapped by mucus
Respiratory Membrane
where oxygen and CO2 are exchanged between the blood and alveolus. Both gasses pass this thin membrane
Lungs & Pleura
3 lobes on the R, 2 lobes on the L