Intake of fluids or other substances by cells of the skin or mucous membranes; the passage of digested foods from the gastrointestinal tract into blood or lymph
Abnormal, nonpathological, partical, or total absence of pigment in skin, hair, and eyes
The partial or complete lack of hair as a result of factors such as genetics, aging, endocrine disorders, chemotherapy, and skin diseases
Smooth muscles attached to hairs; contraction pulls the hairs into a vertical position, resulting in "goose bumps"
Systematic veins and venules that contain large amounts of blood that can be moved quickly to parts of the body requiring the blood
A growth of new bone tissue in and around a fractured area, ultimately replaced by mature bone. An acquired, localized thickening.
Antioxidant precursur of vitamin A, which is needed for synthesis of photopigments; yellow-orange pigment present in the stratum corneum of the epidermis. Accounts for the yellowish coloration of skin
Carotene or Beta-Carotene
Waxlike secretion produced by ceruminous glands in the external auditory meatus (ear canal).
Cerumen or ear wax
A modified sudoriferous (sweat) gland in the external auditory meatus that secretes cerumen (ear wax).
Fingerlike projection of the papillary region of the dermis that may contain blood capillaries or corpuscles of touch (Meissner corpuscles).
The medical specialty dealing with diseases of the skin
A layer of dense irregular connective tissue lying deep to the epidermis
The primary germ layer that gives rise to the nervous system and the epidermis of skin and its derivatives
The ability of tissue to return to its original shape after contraction or extension
The superficial, thinner layer of skin, composed of keratinized stratified squamous epithelium
Narrow brand of stratum corneum at the proximal border of a nail that extends form the margin of the nail wall. Also called the cuticle
Skin redness usually caused by dilation of the capillaries
The process of eliminating waste products from the body; also the products excreted
The ability of muscle tissue to stretch when it is pulled
A threadlike structure produced by hair follicles that develops in the dermis. Also called a pilus
Structure composed of eipthelium and surrounding the root of a hair from which hair develops
A network of dendrites arranged around the root of a hair as free or naked nerve endings that are stimulated when a hair shaft is removed
Hair root plexus
A substance in red blood cells consisting of the protein globin and the iron-containing red pigment heme that transports most of the oxygen and some carbon dioxide in blood
An excessive growth of hair in femailes and children, with a distribution similar to that in adult males, due to the conversion of vellus hairs into large terminal hairs in response to higher-than-normal levels of androgens
Free edge of the fingernail
Localized, protective response to tissue injury designed to destroy, dilute, or wall of the infecting agent or injured tssue; characterized by redness, pain, heat, swelling, and sometime loss of function
Relating to the skin
A condition characterized by the yellowness of the skin, the white of the eyes, mucous membranes, and body fluids beacuse of a buildup of bilirubin
An insoluable protein found in the hair, nails, and other kertinized tissues of the epidermis
The most numerous of the epidermal cells; produces keratin