Skin Flashcards
Dermatology
Study of the skin and its diseases
Skin
Skin largest organ of the body
Sebum
Oily substance secreted by sebaceous glands
Epidermidis
Outer layer of the skin
Dermal layer
The outer most layer, directly beneath the epidermidis,
Subcutaneous layer
Inner most layer of the skin, containing fat tissue
Stratum basale
The deepest layer of the epidermidis consisting of stem cells capable of undergoing cell division to form new cells
Stratum spinosum
A layer of the epidermidis that provide strength and flexibility to the skin
Stratum granulosum
A layer of the epidermidis that marks the transition between the deeper, metabolically active strata and the dead cells of the more superficial strata
Stratum lucidum
A layer of the epidermidis found in the thick skin of fingers, Palms, and soles
Stratum corneum
Outermost layer of the epidermidis
Melanocytes
Cells that produce melanin
Hyper pigmentation
Darkened areas of the skin caused by excessive amounts of melanin
Keratinization
The process by which cells form febrile’s of keratin and harden
Squamous cells
Flatten and scale like
Barrier function
Protective barrier of the epidermidis; the corneum and intracellular matrix protect the surface from irritation and dehydration
Papillary layer
Outer layer of the dermis, directly beneath the epidermis
Tactile corpuscles
Small epidermal structures with nerve endings that are sensitive to touch and pressure
Reticular layer
Deeper layer of the dermis that supplies the skin with oxygen and nutrients
Sudorferous glands
Glance that’s a great sweat to the outside of the body; also assist in body temperature regulation
Sebaceous glands
Secrete sebum (oil) into the hair follicles were the hair shaft pass through the dermis
Eumelanin
Produces brown to black pigment in the hair
Pheomelanin
Produces yellow to red pigments in the hair
Sensation
The process by which are sensory receptors and nervous system’s receive and represent stimulus energies from our environment
Heat regulation
Maintaining a body temperature of 98.6 Fahrenheit through the blood and excretion of perspiration
Absorption
The process or action by which one thing absorbs or is absorbed by another
Protection
When something is kept safe from outside dangerous
Excretion
The process by which wastes are removed from the body, toxins in sweat
Secretion
The substance produced by Glen Royal, sweat
Rosacea
A chronic condition that appears primarily on the cheeks and nose and is characterized by flushing
Wheal
An itchy, swollen lesion that typically lasts only a few hours
Cicatrix
Another name for a scar
Cyst
And abnormal develop sac, above or below the skin, that contains pass, semi fluid, or morbid matter
Bulla
A blister containing a watery fluid, similar to a vesicle, but larger