Integumentary System Flashcards
Body Membrane
A thin pliable layer of tissue covering surfaces, enveloping a part, lining a cavity, or separating or connecting structures or organs.
Epithelial Membrane
line body cavities and passageways, cover internal organs, form inner lining of heart, inner lining of blood vessels
Cutaneous Membrane
the soft outer covering of vertebrates (skin), and guards the underlying muscles, bones, ligaments, and internal organs.
Mucous Membrane
an epithelial tissue that secretes mucus and that lines many body cavities and tubular organs including the gut and respiratory passages.
Serous Membrane
a mesothelial tissue that lines certain internal cavities of the body
Serous Fluid
various bodily fluids that are typically pale yellow and transparent and of a benign nature. The fluid fills the inside of body cavities.
Peritonium
the serous membrane lining the cavity of the abdomen and covering the abdominal organs.
Pleura
a pair of serous membranes lining the thorax and enveloping the lungs in humans and other mammals.
Pericardium
the membrane enclosing the heart, consisting of an outer fibrous layer and an inner double layer of serous membrane.
Synovial Membrane
the soft tissue found between the joint capsule and the joint cavity of synovial joints. It secretes the synovial fluid, which fills the joint cavity and lubricates the joint.
Skin
the thin layer of tissue forming the natural outer covering of the body of a person or animal.
Integument
a tough outer protective layer, especially that of an animal or plant.
Keratin
a fibrous protein forming the main structural constituent of hair, feathers, hoofs, claws, horns, etc.
Epidermis
the outer layer of cells covering an organism, in particular, the surface epithelium of the skin of an animal, overlying the dermis.
Dermis
he thick layer of living tissue below the epidermis that forms the true skin, containing blood capillaries, nerve endings, sweat glands, hair follicles.
Subcutaneous Tissue
also called the hypodermis, hypoderm, it is the lowermost layer of the integumentary system in
vertebrates.
Stratum Basale
the deepest layer of the five epidermis layers, which is the outer covering of skin in mammals. The stratum basale is a continuous layer of cells.
Stratum Spinosum
a layer of the epidermis found between the stratum granulosum and stratum basale.
Stratum Granulosum
a thin layer of cells in the epidermis. Keratinocytes migrating from the underlying stratum spinosum become known as granular cells in this layer.
Stratum Licidum
a thin, clear layer of dead skin cells in the epidermis named for its translucent appearance under a
microscope.
Stratum Corneum
the horny outer layer of the skin.
Melanin
a dark brown to black pigment occurring in the hair, skin, and iris of the eye in people and animals. It is responsible for tanning of skin exposed to sunlight.
Papillary Layer
the uppermost layer of the dermis.
Dermal Papillae
projections of the corium or dermis that interlock with recesses in the overlying epidermis, contain vascular loops and specialized nerve endings, and are arranged in ridgelike lines most prominent in the hand and foot.
Reticular Layer
the lower layer of the dermis, found under the papillary dermis, composed of dense irregular connective tissue featuring densely packed collagen fibers.
Exocrine Glands
glands that produce and secrete substances onto an epithelial surface by way of a duct.
Apocrine Glands
a gland and especially a sweat gland that secretes a viscous fluid into a hair follicle
Hair Folicles
A sac from which a hair grows and into which the sebaceous (oil) glands open.
Arrector pili
small muscles attached to hair follicles in mammals.
Athlete’s foot
a fungal infection affecting the skin between the toes. It is a form of ringworm.
Boils and Carbuncles
painful, pus-filled bumps that form under your skin when bacteria infect and inflame one or more of your hair follicles.
Cold Sores
an inflamed blister in or near the mouth, caused by infection
Contact Dermatitis
A skin condition caused by contact between skin and some substance. Includes irritant contact dermatitis (a rash brought on purely by repeated irritation from a substance
Impetigo
a contagious bacterial skin infection forming pustules and yellow, crusty sores.
Psoriasis
a skin disease marked by red, itchy, scaly patches.
