AP BIOLOGY

Detailed explanation-1: -The epidermis: Acts as a protective barrier: The epidermis keeps bacteria and germs from entering your body and bloodstream and causing infections. It also protects against rain, sun and other elements. Makes new skin: The epidermis continually makes new skin cells.

Detailed explanation-2: -The integumentary system is the largest organ of the body that forms a physical barrier between the external environment and the internal environment that it serves to protect and maintain. The integumentary system includes the epidermis, dermis, hypodermis, associated glands, hair, and nails.

Detailed explanation-3: -Skin, our largest organ, has many jobs. It: protects the network of muscles, bones, nerves, blood vessels, and everything else inside our bodies. forms a barrier that prevents harmful substances and germs from entering the body.

Detailed explanation-4: -The epidermis has three main types of cell: Keratinocytes (skin cells) Melanocytes (pigment-producing cells) Langerhans cells (immune cells).

Detailed explanation-5: -The skin is the body’s largest organ. It acts as a protective barrier and protects us against everything from infections to the sun and the cold. It helps us retain heat and keep cool, and it is able to heal itself.