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Exam 3: BIOS251/ BIOS 251 (Latest 2025/ 2026 Update) Anatomy and Physiology I Guide| Qs & As| Grade A| 100% Correct (Verified Answers)- Chamberlain

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Exam 3: BIOS251/ BIOS 251 (Latest 2025/ 2026 Update) Anatomy and Physiology I Guide| Qs & As| Grade A| 100% Correct (Verified Answers)- Chamberlain Q: Keratinocytes Answer: 90% of epidermal cells that produce keratin and granules for waterproofing Q: Melanocytes Answer: Cells that produce melanin pigment and form a protective shield over the nucleus. - Stratum basale Q: Langerhans cells (dendritic cells) Answer: Immune cells that migrate from bone marrow and mount immune responses. - Stratum spinosum and granulosum Q: Merkel (tactile) cells Answer: Receptors for touch connected to a dermal nerve fiber - Stratum basale - Attached w/ nerve to a "tactile disc" Q: Papillary Layer Answer: Most superficial layer of dermis made of areolar tissue, rich in blood supply Q: Reticular Layer Answer: Deeper, thicker layer of dermis made of dense irregular tissue, collagen & elastic fibers Q: Meissner corpuscles Answer: Respond to touch Q: Pacinian corpuscles Answer: Respond to deep pressure and vibration Q: Ruffini corpuscles Answer: Respond to light pressure Q: Blisters Answer: Form as a result of fluid seeping out of blood vessels, accumulating between epidermis and dermis Q: Adipocytes Answer: Cells that produce fat and connect with hypodermis Q: Eccrine sweat glands Answer: Most abundant exocrine gland found all over the body, abundant in palms, soles, forehead Q: Apocrine sweat glands Answer: Glands that respond to stress and sexual stimulation, found in axilla, groin, anal region Q: Ceruminous glands Answer: Apocrine glands in the ear that produce cerumen (earwax) Q: Mammary glands Answer: Modified apocrine glands in breasts of females that produce milk Q: First degree burns Answer: Include only the epidermis, usually healed within days with little scarring Q: Second Degree burns Answer: Involve the epidermis and part of the dermis, may scar and take 2 weeks to a month to heal Q: Third degree burns Answer: Full-thickness burns involving all of the epidermis, dermis, and deeper tissues, often requiring skin grafts Q: Fourth degree burns Answer:

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Examl3:lBIOS251/lBIOSl251l(Latestl2025/
l2026lUpdate)lAnatomylandlPhysiologylI
lGuide|lQsl&lAs|lGradelA|l100%lCorrectl
(VerifiedlAnswers)-lChamberlain

Q:lKeratinocytes

Answer:
l90%loflepidermallcellslthatlproducelkeratinlandlgranuleslforlwaterproofing




Q:lMelanocytes

Answer:
lCellslthatlproducelmelaninlpigmentlandlformlalprotectivelshieldloverlthelnucleus.
-lStratumlbasale




Q:lLangerhanslcellsl(dendriticlcells)

Answer:
lImmunelcellslthatlmigratelfromlbonelmarrowlandlmountlimmunelresponses.
-lStratumlspinosumlandlgranulosum




Q:lMerkell(tactile)lcells

Answer:
lReceptorslforltouchlconnectedltolaldermallnervelfiber

,-lStratumlbasale
-lAttachedlw/lnerveltolal"tactileldisc"




Q:lPapillarylLayer

Answer:
lMostlsuperficialllayerlofldermislmadeloflareolarltissue,lrichlinlbloodlsupply




Q:lReticularlLayer

Answer:
lDeeper,lthickerllayerlofldermislmadelofldenselirregularltissue,lcollagenl&lelasticlfibers




Q:lMeissnerlcorpuscles

Answer:
lRespondltoltouch




Q:lPacinianlcorpuscles

Answer:
lRespondltoldeeplpressurelandlvibration




Q:lRuffinilcorpuscles

Answer:

,lRespondltollightlpressure




Q:lBlisters

Answer:
lFormlaslalresultloflfluidlseepingloutloflbloodlvessels,laccumulatinglbetweenlepidermislandlder
mis




Q:lAdipocytes

Answer:
lCellslthatlproducelfatlandlconnectlwithlhypodermis




Q:lEccrinelsweatlglands

Answer:
lMostlabundantlexocrinelglandlfoundlallloverlthelbody,labundantlinlpalms,lsoles,lforehead




Q:lApocrinelsweatlglands

Answer:
lGlandslthatlrespondltolstresslandlsexuallstimulation,lfoundlinlaxilla,lgroin,lanallregion




Q:lCeruminouslglands

Answer:

, lApocrinelglandslinlthelearlthatlproducelcerumenl(earwax)




Q:lMammarylglands

Answer:
lModifiedlapocrinelglandslinlbreastsloflfemaleslthatlproducelmilk




Q:lFirstldegreelburns

Answer:
lIncludelonlylthelepidermis,lusuallylhealedlwithinldayslwithllittlelscarring




Q:lSecondlDegreelburns

Answer:
lInvolvelthelepidermislandlpartlofltheldermis,lmaylscarlandltakel2lweeksltolalmonthltolheal




Q:lThirdldegreelburns

Answer:
lFull-
thicknesslburnslinvolvinglallloflthelepidermis,ldermis,landldeeperltissues,loftenlrequiringlskinlg
rafts




Q:lFourthldegreelburns

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