Respiratory system - Breathing

7 important questions on Respiratory system - Breathing

What happens during the process of breathing? Who is this process also called?

Breathing moves air in and out of the lungs
Respiration (not to be confused with cellular respiration in mitochondria of cells)

What are the names of breathing air in? And breathing out?

Inspiration and expiration

How is the gentle "at rest" breathing called?

Tidal breathing (volume breathed in or out is the tidal volume)
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How is it called when you measure the volume of air inspired or expired during a minute?

Minute volume

How is it called when the volume of the air expired when a maximum expiration follows a maximum inspiration?

Vital capacity

How are the two regions in the hindbrain called that control the rate of breathing? How are these also called?

Medulla obligate and pons, they are also called respiratory centers and respond to the concentration of carbon dioxide in the blood. When this concentration rises never impulses are automatically sent to the diaphragm and rib muscles that increase the rate and the depth of breathing.

How is the degree of acidity of the blood regulated?

By regulating the acid-base balance. Breathing is one of these homeostatic mechanisms.
(By increasing the rate of breathing the animal increases the amount of dissolved carbon dioxide that is expelled from the blood. This reduces the acidity of the blood.)

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