A Chemical Element That Is Essential for the Production of Active

question 16

Multiple Choice

A chemical element that is essential for the production of active thyroid hormone is

• A) calcium
• B) potassium
• C) iodine
• D) sodium
• E) phosphorus

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Definitions:

Myelin Sheath

A fatty layer that surrounds and insulates the axons of many neurons, speeding up the transmission of electrical signals along the nerve.

Receives Stimuli

The capacity of an organism or system to respond to environmental signals or changes.

Dendrite

is a tree-like extension of a neuron that receives electrical impulses from other neurons.

Axon

An axon is a long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.