Cellular Junctions
This junction is linked by transmembrane proteins
What is a tight junction?
Tissue growth through cell multiplication
What is hyperplasia?
Fine, unpigmented hair that appears on fetus in last 3 months
These glands have much larger lumen and release thick/milky secretions that contain more fatty acids
What are apocrine glands?
What is an endocrine gland?
Stem cells that can develop in to 2+ cell kinds
What are multipotent stem cells?
Immune cells that stand guard against foreign bodies and alert immune system
What are dendritic cells?
Portion of the hair that is beneath the skin
What is the root?
These are modified apocrine glands in the external ear canal
What are ceruminous glands?
Thin, watery fluids found in oral and nasal cavities
What are serous secretions?
This phase of tissue repair begins several weeks after injury and can last as long as 2 years
What is the remodeling phase?
The most superficial layer of skin
Stratum Corneum
Contains hair root; epithelial root sheath and connective tissue root sheath
What is the follicle?
These cells contract and squeeze perspiration up the duct
What are myoepithelial cells?
Mode of secretion that releases products by pinching off par of the secreting cell membrane
What are apocrine glands?
Tissue necrosis from infection or obstructed blood supply
What is gangrene?
Term for when skin flakes off the stratum corneum
What is desquamation/exfoliation?
Phase of hair growth where hair dies and becomes a club hair, hard keratinized knot at the base
What is catagen?
This sweat evaporates so fast that it isn't noticeable
What is insensible sweat?
These membranes Line the inside of body cavities, outer surface on some viscera
Programmed cell death
What is apoptosis?
Keratinocytes resting on basement membrane, also contains melanocytes, tactile, and stem cells
The growth zone of the nail
What is the nail matrix?
The secretion of these glands keeps skin and hair from becoming dry, brittle, and cracked
What are sebaceous glands?