Nurs 300 Oxygenation Questions And Answers Elaborations!!

NURS 300 OXYGENATION QUESTIONS AND ANSWERS
ELABORATIONS!!
The cardiovascular system
Answers:-provides the transport mechanisms to distribute oxygen to cells and
tissues of the body
-the exchange of respiratory gases occur between the environment and the blood
Neural and chemical regulators


Answers:Control the rate and depth of respiration in response to changing tissue
oxygen demands
-make sure we have enough oxygen
Respiration


Answers:the exchange of oxygen and carbon dioxide during cellular metabolism
Respiration Physiology


Answers:Gases move into and out of lungs through pressure changes
-Intrapleural pressure is negative
-In order for air to flow into the lungs intrapleural pressure becomes more negative
creating a pressure gradients between the atmosphere and the alveoli
The diaphragm and external intercostal muscles


Answers:Contract to create negative pleural pressure increases the size of the
thorax for inspiration
-relaxation of diaphragm and contraction of internal intercostal muscles allow air
to escape from lungs
Orthoptic

, Answers:having to change position in order to breathe
Ventilation


Answers:Process of moving gases in and out of the lungs
Diffusion


Answers:exchange of respiratory gases across alveoli capillary membrane
Perfusion


Answers:Cardiovascular system pumping blood to and from the lungs and body
Work of breathing


Answers:The effort required to expand and contract the lungs
Inspiration


Answers:breathing in
Expiration


Answers:breathing out
Surfactant


Answers:chemical fluid like substance produced in the lungs to maintain the
surface tension of the alveoli and keep them from collapsing
Atelectasis