Ch.5 Gland and burns Flashcards
Sebaceous glands
located in the dermis
are simple or compund alveolar glands that produce sebum - Oily substance rich in lipids
*holocrine glands
Sebum
Produced by sebaceous glands
oily white substance rich in lipids
What are the 2 types of sweat glands?
Eccrine glands
Aprocrine glands
Eccrine gland
most common type of gland
Simple, coiled, tubular gland that opens directly to the surface of the skin through sweat pores
- Deep coiled portion - dermis
- Duct - passes to the skins surface
Found: All over body but mainly in palms of hands and soles of feet
Apocrine sweat gland
simple coiled, tubular glands
open to hair follicles superficial to the opening of the sebaceous glands
Found: axillae and genitalia and around anus
Ceruminous glands
modified eccrine sweat glands located near the ear canal
Cerumne - ear wax composed of combined secretions from ceruminous glands and sebaceous glands
Mammary glands
modified apocrine sweat glands located in breast
Nails
Thin plate consisting of layers of dead stratum corneum cells that contain a very hard type of keratin
What do nails consist of?
Nail root
Nail body
Nail fold
skin that covers Lateral and proximal edges of the nail
Nail groove
Holds edges of nail in place
Cuticle of nail
stratum corneum of the nail fold grows onto the nail body
Hypoychium
beneath the free edge of the nail body
Thickened region of the stratum corneum
Lanula
Small part of nail matrix
seen through the nail body as a whiteish cresent shaped area at base of nail
Vitamin D
aka
calcitriol
Role is to stimulate the update of calcium and phospate from the small intestine
Necessary for bone metabolism and nerve and muscle function