Final answer:
Eupnea is the normal, resting respiration rate and depth. Different conditions like exercise or diseases can prompt modes like hyperpnea, which increases respiratory rate and depth. The respiratory centers of the brain regulate these processes.
Step-by-step explanation:
The normal depth and rate of respiration is known as C. eupnea. It is a mode of breathing that occurs at rest and does not require the cognitive thought of the individual. It's the standard respiratory pattern that supplies sufficient oxygen to all body tissues without any external influence or exertion. Different conditions like exercise or diseases can impact respiration, leading to altered respiratory modes like hyperpnea where there's an increased depth and rate of ventilation to meet higher oxygen demand. It's important to note that the respiratory centers of the brain regulate the pace of these functions, sometimes altering pace to match the oxygen demands of the body.
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