Anatomy & Physiology Chapter 4 Vocab

 The skin; membrane composed of epidermal and dermal layers.

Cutaneous Membrane

 Tiny, smooth muscles attached to hair follicles; cause the hair to stand upright when activated

Arrector Pili

 Oily secretion of sebaceous glands.

Sebum

 Lesion or erosion of the mucous membrane, such as gastric lining of stomach.

Ulcer

 Skin and its derivatives; system that provides the external protective covering of the body.

Integumentary System

 A layer.

Stratum

 Dark pigment formed by cells called melanocytes; imparts color to skin and hair.

Melanin

 Water-soluble protein found in the epidermis, hair, and nails that makes those structures hard and water-repellent

Keratin

 A cell that produces melanin

Melanocyte

 An inflammation of the skin; nonspecific skin allergies

Dermatitis

 Superficial layer of the skin; composed of keratinized stratified squamous epithelium.

Epidermis

 Epidermal glands that produce an oily secretion called sebum.

Sebaceous Gland

 The less numerous type of sweat gland; produces a secretion containing water, salts, proteins,and fatty acids

Apocrine Gland

 Membranes that form the linings of body cavities open to the exterior (digestive, respiratory, urinary, and reproductive tracts).

Mucous Membrane

 Beneath the skin.

Subcutaneous

 Layer of skin deep to the epidermis; composed of dense irregular tissue.

Dermis

 Serous membrane lining the interior of the abdominal cavity and covering the surfaces of abdominal organs.

Peritoneum

 Inflammatory disease of the skin; infection of the sebaceous glands.

Acne

 pertaining to flat, thin cells that form the free surface of some epithelial tissues

Squamous

 Life threatening; pertains to neoplasms that spread and lead to death, such as cancer.

Malignant

 Oily secretion of sebaceous glands.

Sebum

 Two-layered serous membrane that lines the thoracic cavity and covers the external surface of the lung.

Pleura

 Oil Gland

Sebaceous Gland

 Glands that have ducts through which their secretions are carried to a particular site.

Exocrine

 Clear, watery fluid secreted by cells of a serous membrane.

Serous Fluid

 Sweat Gland

Sudoriferous Gland

 Membrane that lines a cavity without an opening to the outside of the body

Serous Membrane

 keeps the free surface of membranes moist

Mucus

 Overzealous immune response to an otherwise harmless antigen

Allergy