Electrical Activity in the Motor Neuron Causes a Release of Signaling

question 10

Multiple Choice

Electrical activity in the motor neuron causes a release of signaling chemicals called:

• A)hormones
• B)neurotoxins
• C)messenger proteins
• D)neurotransmitters

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Definitions:

Planetary Gearset

A gearset consisting of three elements: a sun gear, planetary carrier (containing three or more planetary gears), and a ring gear (annulus). The three separate elements intermesh, and the hold/release status of each determines the output ratios. Also known as an epicyclic gearset.

Stationary Member

A component of a mechanical system that remains fixed in position while other parts move around or relative to it.

Planetary Gearsets

A system of gears consisting of one or more outer gears (planet gears) revolving around a central (sun) gear, used in automatic transmissions.

Minimum Number

The smallest quantity or value in a set or required to accomplish a certain task.