Normally, the Body's Total Expenditure of Energy on Breathing Is

question 139

Multiple Choice

Normally, the body's total expenditure of energy on breathing is about 3%. To what percentage can it increase in highly trained athletes during maximal intensity exercise?

• A)5%
• B)8%
• C)15%
• D)18%

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Definitions:

Dopamine-Releasing Neurons

Nerve cells in the brain responsible for releasing dopamine, a neurotransmitter involved in reward, motivation, and the regulation of movement and emotional responses.

Parkinson's Disease

A chronic and progressive neurological disorder characterized by tremors, stiffness, and slow movement, due to the loss of dopamine-producing brain cells.

Midbrain

A part of the brainstem involved in vision, hearing, motor control, sleep/wake, arousal (alertness), and temperature regulation.

Magnetic Resonance Imaging

A diagnostic technique that uses magnetic fields and radio waves to create detailed images of the body's internal structures.