four protective functions of the skin are

four protective functions of the skin are

Asked by 2 years ago
9.9k points
the two basic tissues of which skin is composed are dense connective tissue, which makes up the dermis, and _1_, which forms the epidermis are _2_. the protein _3_ makes the dermis tough and leather like. the specialized cells that produce the pigments that contribute to skin color are called _4_.1. stratified squamous epithelium 2. keratinocytes 3. keratin 4. melanocytes
four protective functions of the skin are?1. prevents dehydration 2.prevents bacterial invasion 3. protects against thermal damage 4. protects against UV radiation
stratum lucidumtranslucent cells in thick skin containing keratin fibrils
stratum corneum and stratum lucidumdead cells
papillary layerdermal layer responsible for finger prints. region of areolar connective tissue.
dermis as a wholevascular region
epidermis as a wholemajor skin area that produces derivatives (nails and hair)
stratum basaleepidermal area displaying the most rapid cell division. location of melanocytes and tactile(merkle) cells
stratum corneumscalelike dead cells, full of keratin, constantly falling off.
stratum spinosummitotic cells filled with intermediate filaments an area where weblike pre-keratin filaments first appear.
dermis as awholehas abundance elsatic and collagenic fibers
________ granules extruded from the keratinocytes prevents water loss by diffusion through the epidermis.laminated
fibers in the dermis are produced by________.fibroblasts
glands that respond to rising androgen levels are the _________ glands.sebaceous and apocrine glands
phagocytic cells that occupy the epidermis are calledepidermal dendritic cells
a unique touch receptor formed from a stratum basale cell and a nerve fiber is a__________.merkel disk or tactile
name three common fingerprint patternsloops, arches, and whorls
which other body areas would if tested prove to have a high density of sweat glands?face and axillae (armpit)
what organ system controls the activity of the eccrine sweat glands?nervous system
why can fingerprints be used to identify individuals?the pattern of your epidermal ridges is unique and does not change over a persons lifetime. everyone's fingetprint is different.
which skin area-- the forearm or pal of hand-- has more sweat glands?the palm
sebaceous glandssecretes a lubricant for hair and skin. produces an accumulation of oily material that is known as a blackhead.
what two integumentary system mechanisms help regulate body temperatureperspiration and blood flow
sebaceous glandsfound everywhere on the body except the palms of hands and soles of feet.
dead keratinized cellsnail and hair
cutaneous receptorsa type of sensory receptor found in the dermis or epidermis.
sheath formed of both epithelial and connective tissueshair follicle
perspiration glands with a role in temperature controleccrine---sweat gland
less numerous type of perspiration producing glands; found mainly in the pubic and axillary regions.sweat gland---apocrine
tiny muscles, attached to hair folicles, that pull hair upright during fright or cold.arrector pili
what cell-to-cell structure holds the cells of the stratum spinosum tightly together?desmosomes
what substance is manufactured in the skin that plays a role in calcium absorbtion elsewhere in the body?vitamin D3
what are the sensory receptors found in the dermis of the skin?free nerve endings (for pain) messiners corpuscles (for touch) pacinian corpuscles (for pressure)
four protective

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Views: 57
Asked: 2 years ago