ingumentry Flashcards
(35 cards)
epithelial membrane
A type of membrane that lines and covers body surfaces, composed of epithelial tissue and underlying connective tissue. Examples include mucous, serous, and cutaneous membranes.
cutaneous membrane
The skin; it is the largest organ of the body, consisting of the epidermis and dermis, and serves as a protective barrier.
mucous membrane
A membrane that lines body cavities and passages that open to the exterior, producing mucus for lubrication and protection.
serous membrane
A thin membrane that lines body cavities not open to the exterior, producing serous fluid to reduce friction between organs.
serous fluid
A clear, pale yellow fluid produced by serous membranes that lubricates the surfaces of organs within the body cavities.
peritoneum
The serous membrane lining the abdominal cavity and covering the abdominal organs.
pleura
The serous membrane surrounding the lungs and lining the thoracic cavity, consisting of visceral and parietal layers.
Pericardium
The double-walled sac containing the heart, consisting of an outer fibrous layer and an inner serous layer.
Synovial Membrane
A specialized membrane that lines the cavities of synovial joints, producing synovial fluid for lubrication.
Integument
Refers to the skin and its associated structures, including hair, nails, and glands.
Skin
The outer protective layer of the body, consisting of the epidermis, dermis, and subcutaneous tissue.
Keratin
A fibrous protein found in skin, hair, and nails that provides strength and waterproofing.
Epidermis
The outermost layer of skin, composed of stratified squamous epithelium, primarily responsible for protection.
Dermis
The layer of skin beneath the epidermis, containing connective tissue, blood vessels, and various structures like hair follicles and glands.
Stratum Basale
The deepest layer of the epidermis, where new skin cells are generated.
Stratum Spinosum
The layer of the epidermis above the stratum basale, characterized by spiny keratinocytes that provide strength.
Stratum Granulosum
The layer of the epidermis where keratinocytes begin to flatten and accumulate keratin and keratohyalin granules.
Stratum Lucidum
A thin, clear layer of dead skin cells found only in thick skin, such as the palms and soles.
Stratum Corneum
The outermost layer of the epidermis, composed of dead, flattened keratinized cells that provide a barrier.
Melanin
A pigment produced by melanocytes in the skin that determines skin color and provides some protection against UV radiation.
Sebaceous Glands
Glands associated with hair follicles that secrete sebum, an oily substance that helps keep skin and hair moisturized.
Sebum
An oily substance produced by sebaceous glands that helps to lubricate and protect the skin and hair.
Eccrine Glands
Sweat glands found all over the body that produce a watery sweat for thermoregulation.
Apocrine Glands
Sweat glands located mainly in the axillary and genital areas that produce a thicker, milky sweat and are associated with hair follicles.