Aging/Dermis/Hypodermis/Fascia Flashcards
___________ of epidermis in aging
epidermis
_________ in subcutaneous fat (atrophy), blood vessels, hair follicles, sebaceous glands, and sweat glands in aging skin
Reduction
Loss of collagen fibril production causes
wrinkles
Has papillary and reticular layers
dermis
Loose, irregular connective tissue.
Papillary layer
Has immune cells and meissner corpuscles within dermal papillae of thick skin
papillary layer
Dense, irregular connetive tissue
reticular layer
Contains dermatan sulfate
Reticular layer
Contains large collagen fibers, elastic fibers
Reticular layer
Large collagen fibers arranged in parallel rows called _______ lines
Langer’s
Found in deep reticular dermis and adjacent hypodermis
pacinian corpuscles
Bases of glands and hair follicles, horizontally oriented blood vessels, lymphatics, nerves, and sensory structures located in
dermis
Dermis connected to underlying deep fascia or bones by ________ and/or _____________
superficial fascia
subcutaneous tissue/hypodermis
Provide increased area for bonding between epidermal basement membrane and underlying dermis
Dermal and epidermal ridges
Projections of dermis that interdigitate with overlying epidermis
Dermal papilla
Epidermal downgrowths between dermal papillae that divides primary dermal ridge
rete ridges
Two dermal papilla with intervening rete ridge or interpapillary peg
Primary dermal ridges
Large enough that pattern is carried to surface of epidermis as __________ which are finger or toe prints
Primary dermal ridges
epidermal ridges
Has adipose tissue (fat), blood vessels, loose connective tissue, and nerves
subcutaneous (hypodermis)
Between skin and underlying muscles/bones
fascia
also referred to as subcutaneous tissue
superficial fascia
Has loose areolar and adipose that unites dermis to deep fascia
superficial fascia
Layer of connective tissue that enfolds muscles and other internal structures
Deep fascia
Thickened bands of fascia that form restraining bands
retinacula
Evidence of aging skin by
30-35
