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O apocrine sweat appears milky or yellowish in color

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oapocrine sweat appears milky or yellowish in color.oApocrine sweat contains the same components as eccrine sweat pluslipids and proteinsoSweat secreted from apocrine sweat glands is odorlessoapocrine sweat interacts with bacteria on the surface of the skin causes itto have a musky odoroapocrine sweat glands do not begin to function until pubertyCeruminous GlandsModified sweat glands in the external earproduce a waxy lubricating secretionsecretory portions of ceruminous glands lie in the subcutaneous layer, deep tosebaceous glandsexcretory ducts open either directly onto the surface of the external auditorycanalsecretion is a yellowish material calledcerumenprovides a sticky barrier that impedes the entrance of foreign bodies and insectsalso waterproofs the canal and prevents bacteria and fungi from entering cellsSummary of Skin GlandsFEATURESEBACEOUS(OIL) GLANDSECCRINE SWEATGLANDSAPOCRINE SWEATGLANDSCERUMINOUSGLANDSDistributionLargely in lips,glans penis, labiaminora, and tarsalglands; small inThroughout skin ofmost regions of body,especially skin offorehead, palms, andSkin of axillae, groin,areolae, bearded regions offace, clitoris, and labiaminora.External auditory canal.
FEATURESEBACEOUS(OIL) GLANDSECCRINE SWEATGLANDSAPOCRINE SWEATGLANDSCERUMINOUSGLANDStrunk and limbs;absent in palms andsoles.soles.LocationofsecretoryportionDermis.Mostly in deep dermis(sometimes in uppersubcutaneous layer).Mostly in deep dermis andupper subcutaneous layer.Subcutaneous layer.Termination ofexcretoryductMostly connectedto hair follicle.Surface of epidermis.Hair follicles.Surface of external auditorycanal or into ducts ofsebaceous glands.SecretionSebum (mixture oftriglycerides,cholesterol,proteins, andinorganic salts).Perspiration, whichconsists of water, ions(Na+, Cl), urea, uricacid, ammonia, aminoacids, glucose, andlactic acid.Perspiration, which consistsof same components aseccrine sweat glands pluslipids and proteins.Cerumen, a waxy material.FunctionsPrevent hairs fromdrying out, preventwater loss fromskin, keep skin soft,inhibit growth ofsome bacteria.Regulation of bodytemperature, wasteremoval, stimulatedduring emotionalstress.Stimulated duringemotional stress and sexualexcitement.Impede entrance of foreignbodies and insects intoexternal ear canal,waterproof canal, preventmicrobes from enteringcells.Onset offunctionRelatively inactiveduring childhood;activated duringpuberty.Soon after birth.Puberty.Soon after birth.
Nailsplates of tightly packed, hard, dead, keratinized epidermal cells that form a clear,solid covering over the dorsal surfaces of the distal portions of the digitsnail consists ofa nail body, a free edge, and a nail rootnail body(plate) is the visible portion of the nailoappear pink because of capillariesoBelow the nail body is a region of epithelium and a deeper layer of dermisfree edgeis the part of the nail body that may extend past the distal end of thedigitofree edge is white because there are no underlying capillariesThenail rootis the portion of the nail that is buried in a fold of skinThe whitish, crescent-shaped area of the proximal end of the nail body is calledthelunulaappears whitish because the vascular tissue underneath does not show throughdue to a thickened region of epitheliumBeneath the free edge is a thickened region of stratum corneum called

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Term
Spring
Professor
CHADWAYNE
Tags
Stratum Corneum

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