A Goiter

question 182

Multiple Choice

A goiter

• A)may occur with hyper- and hypothyroidism
• B)refers to cancerous tumor in the thyroid gland
• C)occurs only in the presence of thyroid-stimulating immunoglobulin
• D)is characterized by both a and b
• E)is characterized by both b and c

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Definitions:

Dilation

The expansion or widening of a part or structure of the body, such as the dilation of pupils in response to low light or the dilation of blood vessels to increase blood flow.

Constriction

The act of narrowing, tightening, or compressing, often referring to muscles, blood vessels, or airways.

Iris

The colored part of the eye that surrounds the pupil and controls the amount of light entering the eye by adjusting the size of the pupil.

Ganglion Cells

Type of neurons found in the retina that receive visual information from photoreceptors via intermediate bipolar cells and transmit it to the brain.