The External Auditory Canal Ends at the

question 129

Multiple Choice

The external auditory canal ends at the

• A) vestibule.
• B) cochlear oval window.
• C) malleus.
• D) tympanic membrane.
• E) pinna.

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Definitions:

Central Nervous System

The part of the nervous system consisting of the brain and spinal cord, responsible for processing and sending out information.

GABA

Gamma-aminobutyric acid, an inhibitory neurotransmitter in the brain that helps regulate neuronal activity and reduces anxiety.

Acetylcholinesterase

An enzyme that breaks down acetylcholine, a neurotransmitter involved in muscle action and memory.

Seconal

A brand name for secobarbital, a barbiturate used as a sedative and hypnotic medication.