Integumentary System Review

Front

What is the Integumentary System?

Back

The Integumentary System is the organ system that includes the skin, hair, nails, and associated glands, serving as a protective barrier for the body.

Front

What are the main functions of the skin?

Back

The skin protects against pathogens, regulates body temperature, provides sensory information, and helps in the synthesis of vitamin D.

Front

What is the epidermis?

Back

The epidermis is the outermost layer of the skin, composed mainly of keratinized cells that provide a protective barrier.

Front

What is the dermis?

Back

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

Front

What is the hypodermis?

Back

The hypodermis, or subcutaneous layer, is the layer of fat and connective tissue that lies beneath the dermis, providing insulation and cushioning.

Front

What is melanin?

Back

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

Front

What are mucous membranes?

Back

Mucous membranes are epithelial layers that line body cavities and organs that are exposed to the external environment, such as the respiratory and digestive tracts.

Front

What are serous membranes?

Back

Serous membranes are thin layers of tissue that cover internal organs and line body cavities, producing serous fluid to reduce friction.

Front

What is the role of sweat glands?

Back

Sweat glands help regulate body temperature through the process of evaporation and also assist in excreting waste products.

Front

What is the role of sebaceous glands?

Back

Sebaceous glands secrete sebum, an oily substance that lubricates the skin and hair, preventing dryness.