The First Event to Occur When an Adequate Stimulus Is

question 117

Multiple Choice

The first event to occur when an adequate stimulus is applied to a neuron is:

• A) the membrane potential moves immediately to a value of +30 mV.
• B) the potassium channels open.
• C) the sodium channels are inactivated.
• D) some of the sodium channels at the point of stimulation open.

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Definitions:

Prefrontal Cortex

The front part of the frontal lobe of the brain, involved in complex behaviors such as decision making, problem-solving, and controlling social behavior.

Limbic System

The limbic system is a complex set of brain structures located on both sides of the thalamus, involved in emotions, memory, and arousal.

Amygdala

A almond-shaped set of neurons located deep in the brain's medial temporal lobe, playing a key role in processing emotions such as fear and pleasure.

Pituitary Gland

A small pea-sized gland located at the base of the brain, crucial for controlling growth, metabolism, and the function of other endocrine glands.