The Mass of the Electrically Neutral Particle, the Neutron, Which

question 50

Multiple Choice

The mass of the electrically neutral particle, the neutron, which is one component of the atomic nucleus along with the proton, is _____ the mass of the proton.

• A) about twice
• B) about the same as
• C) 2000 times less than
• D) 200 times greater than

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Definitions:

Midbrain

The middle portion of the brainstem, involved in functions such as vision, hearing, motor control, and sleep/wake cycles.

Cranial Nerves

Twelve pairs of nerves that emerge directly from the brain, not the spinal cord, and pass through various foramina of the skull to innervate the head, neck, and visceral organs directly.

Medulla Oblongata

A portion of the brainstem responsible for autonomic functions such as breathing, heart rate, and blood pressure control.

Midbrain

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