Chapter 4: Integumentary (Skin Intro)

The skin serves multiple functions including protection, temperature maintenance, excretion, and sensory reception.

Sebaceous gland.

The three main layers of the skin are the epidermis, the dermis, and the hypodermis.

The dermis is the layer of skin beneath the epidermis that contains connective tissue, hair follicles, and glands.

The dermis.

The epidermis is the outermost layer of skin, providing a barrier and protecting underlying tissues.

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

Sudoriferous glands are sweat glands that help regulate body temperature and excrete waste.

Melanin is a pigment produced by melanocytes in the skin that gives color and protects against UV radiation.

Keratin is a protein that helps form the protective outer layer of the skin and makes it waterproof.