Animal Integumentary and Circulatory Systems

Front

What is Sclerotization?

Back

Hardening of the arthropod cuticle by protein cross-linking.

Front

What is Calcification?

Back

Deposition of calcium salts in tissues for hardness.

Front

What is Ecdysis?

Back

Shedding of the outer skin or exoskeleton.

Front

What is Keratinization?

Back

Formation of a tough, protective layer of keratin in the skin.

Front

What is the Hypodermis?

Back

The deepest layer, made up of fat and connective tissue for insulation and cushioning.

Front

What is the Dermis?

Back

Middle layer, contains blood vessels, nerves, glands, and connective tissue.

Front

What is the Cuticle?

Back

Thin outermost layer of the dead cells in the epidermis (mostly in hair or skin surface).

Front

What is the Epidermis?

Back

Outer layer, avascular, and made up of stratified squamous epithelium, provides protection.

Front

What is Keratin?

Back

Tough protein found in vertebrate epidermal cells that provides protection.

Front

What is Melanin?

Back

Pigment produced by melanocytes in the epidermis, protects against UV radiation.