Action Potentials Can Result in Different Sensations (E

question 128

Multiple Choice

Action potentials can result in different sensations (e.g., heat, sound, light, or taste) because

• A) they vary in magnitude according to type of sensory receptor cell.
• B) messages from different types of sensory receptor cells arrive at different places in the central nervous system.
• C) they vary in type of neurotransmitter released, which depends on type of sensory receptor cell.
• D) messages from different types of sensory receptor cells arrive at the same place in the central nervous system, but at different times.
• E) they vary in frequency according to type of sensory receptor cell.

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Definitions:

Pruritus Ani

Itching around the anus.

Itching

An uncomfortable sensation on the skin that provokes the desire to scratch, often caused by irritation, allergies, or infections.

Anus

The external opening of the anal canal.

Tongue

The muscular organ of the mouth that assists in the production of speech, contains the taste buds, and provides the ability to swallow.