The External Ear Consists of Three Parts: the Auricle, the External

question 56

True/False

The external ear consists of three parts: the auricle, the external auditory canal, and the tophi.

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Definitions:

Myelin Sheath

A fatty layer that surrounds the axons of some nerve cells, serving as insulation and increasing the speed at which nerve impulses are conducted.

Axons

Neuronal fibers that transmit electrical signals from the neuron's cell body to other cells, playing a critical role in the central nervous system's function.

Myelinated Axons

Axons that are covered with myelin, a fatty substance that speeds up the transmission of nerve impulses.

Action Potential

A rapid rise and subsequent fall in voltage or electrical charge across a cellular membrane, typical of neurons and muscle cells.