ANPH 1001 UNIT 2 Questions and
Answers Graded A+
Integumentary System - Correct answer-System made up of skin and its
appendages (modifications of skin) such as hairs, nails, sebaceous and sweat
glands
Skin - Correct answer-Skin actively produces vitamin D (UV sunlight required)
necessary to stimulate intake of calcium and phosphorus in our intestines .
Vitamin D - Correct answer-Necessary to stimulate intake of calcium and
phosphorus in our intestines. Vitamin D production occurs at liver and kidney
Functions of Integumentary System - Correct answer-Secretion, sensation
protection, and thermoregulation.
Protects from harmful UV radiation by producing pigment melanin
Barrier to most harmful chemicals
Helps regulates body temperature by sweating
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,Layers of Skin - Correct answer-2 main layer of skin : Epidermis (upper) and
Dermis (true)
Epidermis - Correct answer-Outermost layer of skin, layer of epithelial tissue
divided into sub layers contains to blood vessels (avascular)
Composed of stratifies, squamous, keratinized (skin flakes) epithelial cells locked
together by desmosomes
Thickest around palms of halons and soles of feet for more protection
Epidermis rests on basement membrane of connective tissue
Lower most cells on membrane divide by mitosis so new cells push older cells up
towards the surface losing water and eventually die (keratinization)
Dermis - Correct answer-Inner layer of skin containing blood vessels, layer of
dense connective tissue connective skin to tissues (fat/muscle) below
Subcutaneous Layer - Correct answer-Below the Dermis, sometimes called
hypodermis (fatty layer)
Keratinization - Correct answer-Forms 5 layers of epidermis called strata (plural)
or stratum (singular )
Divides by mitosis so new cells push older cells up towards the surface losing
water and eventually dieting
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, Dead outermost cells constantly being she's and serve to form a protective barrier
5 layers of strata ( outermost to deepest ) - Correct answer-1. Stratum corneum
2. Stratum Lucidum
3. Stratum Granulosum
4. Stratum spinosum
5. Stratum germinativium
Stratum Corneum - Correct answer-Outermost strong layer of epidermis consisting
of dead cells called keratinized cells (lost water and filled keratin protein)
Barrier to light, heat, chemicals and microorganisms
Stratum Lucidum - Correct answer-Thin, transparent and flat cells only one or two
layers thick
Stratum Granulosum - Correct answer-Two or three layers of flattened cells
accumulating granules
Active keratinization losing nuclei becoming compact and brittle
Stratum Spinosum - Correct answer-Several layers of prickly spiny shaped cells
containing desomsomes
Stratum Germinativium - Correct answer-Deepest and most important layer of skin
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Answers Graded A+
Integumentary System - Correct answer-System made up of skin and its
appendages (modifications of skin) such as hairs, nails, sebaceous and sweat
glands
Skin - Correct answer-Skin actively produces vitamin D (UV sunlight required)
necessary to stimulate intake of calcium and phosphorus in our intestines .
Vitamin D - Correct answer-Necessary to stimulate intake of calcium and
phosphorus in our intestines. Vitamin D production occurs at liver and kidney
Functions of Integumentary System - Correct answer-Secretion, sensation
protection, and thermoregulation.
Protects from harmful UV radiation by producing pigment melanin
Barrier to most harmful chemicals
Helps regulates body temperature by sweating
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,Layers of Skin - Correct answer-2 main layer of skin : Epidermis (upper) and
Dermis (true)
Epidermis - Correct answer-Outermost layer of skin, layer of epithelial tissue
divided into sub layers contains to blood vessels (avascular)
Composed of stratifies, squamous, keratinized (skin flakes) epithelial cells locked
together by desmosomes
Thickest around palms of halons and soles of feet for more protection
Epidermis rests on basement membrane of connective tissue
Lower most cells on membrane divide by mitosis so new cells push older cells up
towards the surface losing water and eventually die (keratinization)
Dermis - Correct answer-Inner layer of skin containing blood vessels, layer of
dense connective tissue connective skin to tissues (fat/muscle) below
Subcutaneous Layer - Correct answer-Below the Dermis, sometimes called
hypodermis (fatty layer)
Keratinization - Correct answer-Forms 5 layers of epidermis called strata (plural)
or stratum (singular )
Divides by mitosis so new cells push older cells up towards the surface losing
water and eventually dieting
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
, Dead outermost cells constantly being she's and serve to form a protective barrier
5 layers of strata ( outermost to deepest ) - Correct answer-1. Stratum corneum
2. Stratum Lucidum
3. Stratum Granulosum
4. Stratum spinosum
5. Stratum germinativium
Stratum Corneum - Correct answer-Outermost strong layer of epidermis consisting
of dead cells called keratinized cells (lost water and filled keratin protein)
Barrier to light, heat, chemicals and microorganisms
Stratum Lucidum - Correct answer-Thin, transparent and flat cells only one or two
layers thick
Stratum Granulosum - Correct answer-Two or three layers of flattened cells
accumulating granules
Active keratinization losing nuclei becoming compact and brittle
Stratum Spinosum - Correct answer-Several layers of prickly spiny shaped cells
containing desomsomes
Stratum Germinativium - Correct answer-Deepest and most important layer of skin
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
