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respiratory system .docx - Respiratory System Functions: 1....

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Respiratory SystemFunctions:1. ObtainO22. RemoveCO23.Filterincoming air4.Warm and humidifyincoming air5. Producevocal sounds6.Participate in the sense ofsmell7.Assist in regulation ofblood pHRespiratory AnatomyStructural Divisions:1.Upper Respiratory Tract:Nose & Throat [Nose (nares),Pharynx(throat) ,Larynx (voice box)]2.Lower Respiratory Tract:[Trachea(windpipe), Bronchial Tree(Bronchi, Bronchioles), Lungs (alveoli)]Nose--Bone and cartilage.Covered by skin/ lined by mucous membrane.-Air enters external nare (the only visible part of respiratory system)-Nasal septum→ Interior consists of nasal cavity-Nasal cavity has3 shelves (conchae)whichincrease surface area,allowing more space forair warmed, humidified(moistened) andfiltered.-Mucous membrane secretesmucus that entraps dust/smallparticles that enter with air.Paranasal Sinuses: Air-filled spaces in skull that connect with nasal cavity
Pharynx (THROAT):-Extends fromback of nasal cavity to larynx-Walls made ofskeletal muscle-3 segments are:

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Term
Summer
Professor
MONEERWERDEG
Tags
hyaline cartilage

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