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LEXAM COMPLETE QUESTIONS AND CORRECT DETAILED
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mANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+||B
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RAND NEW!! m
Keratin - m
mANSWER a protein substance that helps protect the skinagainst inv
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asion
keratinization - m
ANSWER the process of living cells moving upwardand changing t
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o dead calls
m m
the two main zones of the epidermis - ANSWER 1. horny zone
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2. germinal zone
m m
horny zone layers - ANSWER 1. stratum corneum
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2. stratum lucidium m
3. stratum granulosum m
(act as a barrier against invasion and water absorption)
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stratum corneum - m m
mANSWER outer most layer of the skin where deadskin cells are cons
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tantly shed m
stratum lucidum - m m
mANSWER second layer of the skin that is transparent due to eleidin and
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only on the palms of your hands and soles of your feet
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stratum granulosum (granular layer) -
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mANSWER bottom layer of the horny zone. THICKEST on the soles of th
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e feet and palms of the hands,THINNEST on the eyelids. Forms calluses.
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Germinal Zone Layers - ANSWER 1. stratum spinosum
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2. stratum germinativum
m m
,stratum spinosum - ANSWER prickle cell layer
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stratum germinativum (basal cell layer) -
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mANSWER the LOWEST layerof the epidermis, in contact with the der
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mis.
cell division (mitosis) occurs here
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Stratum Mucosum - m m
m ANSWER the malpighian layer The Dermis -
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ANSWER the living layer or "true skin"
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Meissner's Corpuscles - m m
ANSWER nerve endings sensitive to touchin the papillary layer
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The Reticular Layer -
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mANSWER the THICKEST layer of the skinmade of collagen fibe
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rs
Appendages of the Reticular layer - m m m m m
mANSWER arrector pili musclesblood vessels
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fat cells
m
hair follicles l
m m
ymph vessels m m
nerve endings m
sebaceous glads- m
moil sudoriferous glands-
m m
msweat
As the blood supply circulates through the skin it... -
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mANSWER transports the oxygen- m m m
rich blood and nutrients essential for growth;reproduction; and tissue
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mrepair of the skin, hair, and nails
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Lymph glands produce - ANSWER lymph
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lymph - m
,mANSWER white blood corpuscles and plasmacontain
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s waste products, salts, and nitrogenous wastes
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, sudoriferous glands - m m
mANSWER the sweat glands under the control ofthe sympathetic nervou
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s system
m
Apocrine Glands (smelly) - m m m
mANSWER in the pubic and axillary(underarms) area
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excrete pheromones m
eccrine glands (everywhere) -
m m m
mANSWER all over the bodymore in the foreheads, palms
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of hands, and soles of feet
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Sebaceous glands (oil glands) - ANSWER all over the skin
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mainly appendages to the hair follicles and open into the shafts of hair
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follicles.
more on the scalp, T-
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zone, and cheeksproduce sebum (oil)
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are of the philosebaceous unit influ
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enced by the endocrine systemmost
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mactive during puberty m m
the philosebaceous unit - ANSWER the hair
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arrector pili muscle - m m m
mANSWER an appendage that is attached to the hairfollicle
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partially responsible for heat regulation
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subcutaneous layer (adipose tissue) - m m m m
mANSWER a layer of fatty tissue atthe base of the dermis
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layers of the hair - ANSWER 1. cuticle (protection)
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2. cortext (pigment) m
3. medulla (strength of the hair) m m m m
Anagen - m
ANSWER hair's active growing phase, the hair follicle is at itsdeepest
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