Chapter 8 Respiratory Control Flashcards
What are the four main parts of respiration?
Pulmonary ventilation, Pulmonary diffusion, transportation, and capillary diffusion
What parts of respiration are considered external respiration?
Pulmonary ventilation and pulmonary diffusion
What part of respiration is considered internal respiration?
Capillary diffusion
What is pulmonary ventilation?
Moving air in and out of your lungs
What is pulmonary diffusion?
The gas exchange within the lungs.
What is transportation?
Bringing oxygen to the exercising muscle.
What is capillary diffusion?
The gas exchange within the capillaries and muscles.
What two components make up pulmonary ventilation?
Inspiration and expiration.
Describe the process of inspiration.
It is an active process that moves air into the lungs by the contraction of the diaphragm allowing the lungs to expand which increases volume and decreases pressure through Boyle’s law creating a pressure gradient that makes outside air come into the lungs.
True or false.
Expiration is always passive.
False.
Expiration can be active through forced expiration.
Describe the process of expiration.
It is usually a passive process that moves air out of the lungs through the relaxation of the diaphragm compressing the lungs causing a decrease in volume and increase in pressure through Boyle’s law that makes a pressure gradient where the inside air pressure is greater than outside air pressure making air leave the lungs.
What is a pressure gradient?
A difference in pressure
What is Tidal volume? (TV)
The amount of air in a normal breath.
What is Inspiratory reserve volume? (IRV)
The additional amount of air you could inspire beyond a normal inspiration.
What makes up Inspiratory capacity? (IC)
Tidal volume + Inspiratory reserve capacity.