Skin and Excretory Systems

The inner layer of the skin is called the

• dermis
• epidermis
• subcutaneous tissue
• fat

The outer layer of the skin is called the

• dermis
• epidermis
• subcutaneous tissue
• fat

Tiny openings at the skin’s surface are called

• epidermis
• pores
• dermis
• oil gland

The cells that make up the epidermis are both living and

• alive
• dead
• yellow
• brown

Hair grows from ____________________ located in the skin

• pores
• dermis
• hair follicle
• oil follicle

The skin is moistened and softened by oil made in

• salt glands
• rain glands
• water glands
• oil glands

Nerve endings in the skin are located in the

• epidermis
• dermis
• subcutaneous tissue
• fat

Water molecules in the blood pass through the walls of the ____________________________ into the sweat glands

• capillaries
• sweat glands
• pores
• dermis

The structures in the skin that help to remove liquid wastes are the

• hair follicle
• sweat gland
• water gland
• capillaries

Liquid wastes are removed from the skin as sweat or

• rain
• perspiration
• showering
• swimming