RESPIRATORY SYSTEM DPT 712 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED

RESPIRATORY SYSTEM DPT 712 EXAM QUESTIONS AND

ANSWERS WITH COMPLETE SOLUTIONS VERIFIED

Ventilation

mechanical process of moving air in and out of lungs

Gas Exchange

blood and air/tissues that occurs in alveoli

Gas Delivery

to tissues via blood flow

Oxygen Utilization

by tissues that synthesize ATP (cellular respiration)

Return of Gasses

from tissue to lung (CO2 and O2)

Exhalation

component of ventilation

External Respiration

ventilation + gas exchange

Internal Respiration

O2 utilization + gas exchange

Conduction Zone

-airways divide into this and respiratory zone

-conducts air to respiratory zone

, -warms , humidifies, filters, and cleans air

-mucus traps small particles and cilia move it away from lungs

Respiratory Zone

-airways divide into this and conduction zone

-gas exchange with blood

Alveoli

-air sacs in lungs where gas exchange occurs (800 million)

-provide large surface area = increase rate of gas diffusion

-form clusters at ends of respiratory bronchioles

-membrane is one cell thick (simple squamous)

Atelectasis

complete/partial collapse of entire lung

Pulmonary Edema

fluid in alveoli

pathway of air to alveoli gas exchange surface

-air down nasal cavity -> pharynx -> larynx -> trachea

-R & L primary bronchi -> secondary bronchi -> tertiary bronchi (branching)

-terminal bronchioles -> respiratory zone -> terminal alveolar sacs

Thoracic Cavity Anatomy

-between neck and diaphragm

-protected by thoracic cage

Mediastinum