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Resp System- 22

What respiratory organ separates the upper and lower respiratory tract? Trachea
Paranasal sinuses drain where? Nasal cavity
The pharynx contains tonsils and openings for: Eustachian tubes
The voicebox is located between which two respiratory organs? Pharynx and trachea
Another name for the larynx Voice box
Two functions of the larynx from notes Prevents foreign objects, food from entering trachea; composed primarily of cartilage
What does the epiglottis prevent? Food from entering larynx
What does testosterone do when deepening the voice? Vocal chords thicken, lengthen and the larynx to increase in size
How long is the trachea? 4-5 inches (1 in. in diameter)
What is the purpose of the rigid cartilage of the trachea? Prevents trachea from collapsing
Name of bifurcation of trachea into L and R primary bronchi Carina
What is the opening between the trachea and esophagus? Tracheoesophageal fistula (usually found in right bronchi)
As the bronchial tree extends deeper into the lungs, the: Amount of cartilage decreases
When bronchi divide beyond tertiary, they become: Bronchioles (contain no cartilage)
Bronchioles contain ___________ that allows them to change ________. Smooth muscles; diameter
Bronchioles give rise to: Aveolar ducts
Aveolar ducts end in: Aveoli (small, sac-like)
What surrounds each aveoli? Pulmonary capllary
What is the name of the collapse of Aveoli? Atelectasis
Definition of pleura Continuous serous membrane lining the lungs and the inner chest wall
What is the space between the visceral and parietal pleura? Pleural cavity (intrapleural space)
How is serous fluid secreted in the pleural cavity and what is it's function? Secreted by pleural membranes which then decreases friction during respiration
What is the excess accumulation of fluid in the pleural cavity? Pleural effusion
What do the lungs secrete to decrease the surface tension within the lungs Surfactant
When a lung collapses, what happens when the arrangement of elastic fibers in lunch force air out if tension within the lung is released Elastic Recoil
A child born prematurely and have not yet produced surfactant Respiratory Distress
Pneumothorax defined Puncture in the chest wall and rupture in lung
Compliance is the measure of: Elastic recoil in the lungs
When lung compliance is decreased: Tissue more stiff, increased level of elastic recoil, lungs have difficulty fully inflating
When lung compliance is increased: Lung tissue less stiff, decreased level of elastic recoil, lungs unable to fulle expell air
Clinical example of increased compliance Emphysema
Clinical example of decreased compliance Pulmonary edema, pulmonary fibrosis
First step of respiration Ventilation
Second step of respiration Exchange of oxygen and carbon dioxide
Third step of respiration Transpot of oxygen and carbon dioxide by the blood
Created by: CBaney



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