Module 1 Key Terms Flashcards
vascular, loose connective tissue that stores fat and provides energy, cushioning, and insulation
adipose tissue
thin, cellular layer separating the epidermis from the dermis
basement membrane
collection of fluid at the junction between the dermis and epidermis due to friction
blister
localized buildup of stratum corneum cells due to presure or friction
callus
fibrous protein in connective tissue
collagen
phagocytic cell that assists with immune function
dendritic cell
the ridges and valleys of the superior surface of the dermis that conforms with the contours of the epidermal stratum basale to help anchor the two layers together
dermal papillae
connective tissue protein that is highly extensible
elastin
connective tissue protein that is highly extensible
elastin
outer, avascular layers of the skin
epidermis
fibrous connective tissue that separates and surrounds structures and facilitates movement between adjacent structures
fascia
dermal cell that produces collagen, elastin, granulation tissue, and growth factors
fibroblast
local concentration of melanin in the skin
freckle
wound that extends through the epidermis and dermis and into or through the subcutaneous tissue
full-thickness wound
epidermal appendages located within the dermis that are made of soft keratin
hair
chemical mediator released by mast cells that causes vasodilation, increases vessel wall permeability, and attracts other cells to the area
histamine
a protein produced by keratinocytes. nails are made of hard, hair is made of soft
keratin
epidermal cell that resurfaces a wound and produces keratin
keratinocyte
epidermal cell that assist with infection control
langerhans’ cells
cell that directs the pair process, secretes growth factors and enzymes, and destroys bacteria and debris
macrophages
cell that helps initiate inflammation, secretes histamine, enzymes, and chemical mediators
mast cell
pigment produced by melanocytes that helps protect the body from ultraviolet radiation and is a major determinant of skin color
melanin
pigment-producing cells within the epidermis
melanocytes
sensory recetor within the epidermis providing information on light touch
merkel cell
epidermal appendage made of hard keratin and located at the dorsal tips of digits
nail
damage to the skin resulting in a loss of skin integrity
open wound
thin superficial dermal layer consisting of loosely arranged connective tissue
papillary dermis
wound invovling the epidermis and part of the dermis
partial-thickiness wound
process of engulfing and destroying bacteria and/or debris
phagocytizing
protrusions of the epidermal stratum basale that extend into the papillary dermis to help anchor the two layers together
rete pegs
thick, deeper dermal layer consisting of dense, irregularly arranged connective tissue
reticular dermis
oil gland; epidermal appendage located within the dermis
sebaceous gland
oily substance that lubricates the skin and hair
sebum
deepest epithelial cell layer; contains continuously dividing cells
stratum basale
outermost epithelial cell layer; consists of dead keratinocytes
stratum corneum
epithelial cell layer located between the stratum spinosum and stratum lucidum
stratum granulosum
epithelial cell layer between the stratum granulosum and stratum corneum
stratum lucidum
epithelial cell layer located between the stratum basale and stratum granulosum
stratum spinosum
composed of adipose tissue and fascia; located beneath the dermis; helps support the skin
subcutaneous tissue
composed of adipose tissue and fascia; located beneath the dermis; helps support the skin
subcutaneous tissue
sweat gland; epidermal appendage located within the dermis
sudoriferous glands
wound involving only the epidermis
superficial wound
cell that helps fight infection
white blood cell
