Name and Briefly Define the Three Layers of the Hair

question 18

Essay

Name and briefly define the three layers of the hair shaft.

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Definitions:

Symmetrical

Having parts that match in size, shape, and position on both sides of a dividing line.

Ordinary Mole

A common type of benign skin growth that appears as a small, dark brown spot, caused by clusters of pigmented cells.

Melanoma

A type of skin cancer that develops from the pigment-producing cells known as melanocytes.

Solid Mass

A physical form of matter that has a defined shape and volume without fluid properties.