Structure and Basic Function of Skin Flashcards
what is the appearance of skin on the palms
thickened keratin layer
undulations of the dermis give rise to fingerprints
what is the appearance of skin on the soles
very thick keratin layer helical structures (terminal sweat glands)
where are Meissner’s corpuscles often seen
tactile area - fingers and toes
where are Pacinian corpuscles often seen
finger pulp sections
what makes up the central medulla and outer cortex and cuticle of the hair follicle
central medulla - soft keratin
outer cortex and cuticle - hard keratin
what aspect of the hair follicle contains multiple vascular channels
papilla
what aspect of the hair follicle contains keratin producing cells
matrix region
what does the hyponychium of the nail do
secures the free nail edge
what is the cuticle
extension of the skin fold covering the nail root
what happens to cells in the matrix of the nail
they divide to produce hard keratin
what are the main 3 things that occur in skin failure
loss of thermoregulation
failure of homeostatic function
increased risk of infection
what is primary intention healing
edges brought together by stitches leading to rapid healing
what might compromised primary intention healing
haematoma
infection
poor suture technique
dehiscence
when does secondary intention healing occur
larger wounds that are too tight stitch it where direct closer will distort surrounding tissue
what are the 3 stages of healing
inflammation
proliferation and tissue remodelling
tissue remodelling
