Integumentary System - Skin & Nail

Front

What is the outermost layer of the skin?

Back

The stratum corneum is the outermost layer of the epidermis, consisting of dead skin cells that are shed regularly.

Front

What are the four main layers of the epidermis?

Back

The four main layers of the epidermis are the stratum corneum, stratum granulosum, stratum spinosum, and stratum basale.

Front

What is the primary function of melanocytes?

Back

Melanocytes are cells in the epidermis that produce melanin, the pigment responsible for skin color.

Front

What is the role of the dermis in the skin?

Back

The dermis is the layer of skin beneath the epidermis that contains connective tissue, blood vessels, and nerve endings.

Front

What is the hypodermis?

Back

The hypodermis, also known as the subcutaneous layer, is the layer of fat and connective tissue beneath the dermis that insulates the body.

Front

What is the function of sebaceous glands?

Back

Sebaceous glands produce sebum, an oily substance that helps to keep the skin moisturized and protects against bacteria.

Front

What is the arrector pili muscle?

Back

The arrector pili muscle is a small muscle attached to hair follicles that causes hair to stand up when contracted, often in response to cold or fear.

Front

What is the significance of the stratum corneum?

Back

The stratum corneum acts as a barrier to protect underlying tissues from infection, dehydration, and mechanical stress.

Front

What is the role of sweat glands in the skin?

Back

Sweat glands help regulate body temperature through the secretion of sweat, which cools the body as it evaporates.

Front

What is the structure labeled as a hair follicle?

Back

A hair follicle is a small tubular structure in the skin from which a hair grows.