Hair, Glands, and Nails Flashcard

Front

What do sebaceous glands secrete?

Back

Sebaceous glands secrete oil, which helps to lubricate and protect the skin and hair.

Front

What is the function of the hair follicle?

Back

The hair follicle is responsible for the growth of hair and anchors each hair into the skin.

Front

What part of the nail undergoes rapid mitosis?

Back

The nail matrix is the part of the nail that undergoes rapid mitosis, leading to nail growth.

Front

What is the hair shaft?

Back

The hair shaft is the visible part of the hair that extends above the skin's surface.

Front

What causes hair to stand on end?

Back

The arrector muscle causes hair to stand on end, often in response to cold or fear.

Front

What is the role of the nail bed?

Back

The nail bed supports the nail plate and contains blood vessels and nerves.

Front

What is the difference between hair and nails?

Back

Hair is made of keratin and grows from follicles, while nails are hard protective coverings made of keratin that grow from the nail matrix.

Front

What are the types of glands associated with hair?

Back

The two main types of glands associated with hair are sebaceous glands (which secrete oil) and sweat glands (which secrete sweat).

Front

What is the structure of a hair follicle?

Back

A hair follicle consists of several layers, including the outer root sheath, inner root sheath, and the hair bulb.

Front

What is the purpose of the arrector pili muscle?

Back

The arrector pili muscle contracts to make hair stand upright, providing insulation and making the animal appear larger.