BSC215 - Exam 2 And 3 Practice Test
Questions Well Answered 2026/2027
Newest Updated.
Integumentary functions: protection - Answer mechanical trauma, pathogens, outside
environment
Integumentary functions:Sensations - Answer Numerous sensory receptors
Integumentary functions:Thermoregulation - Answer sweat glands and vasomotion
Integumentary functions: Excretion - Answer lactic acid and urea
Integumentary functions: Vita D Synthesis - Answer exposure to cholesterol precursors to UV
radiation
Burn complications - Answer Infection, hypothermia, cancers
stratum basale - Answer cells are actively dividing stem cells; deepest level
stratum spinosum - Answer some cells mitotically active
stratum granulosum - Answer a layer of the epidermis that marks the transition between the
deeper, metabolically active strata and the dead cells of the more superficial strata
stratum lucidum - Answer Clear, transparent layer of dead keratinocytes (thick skin ONLY)
stratum corneum - Answer dead keratinocytes, slough off; most superficial layer
epidermis cells - Answer keratinocytes, melanocytes (color), merkel cells (touch)
90% of the dust=dead skin
40-50 day cycle
,Dermis - Answer Inner layer of skin; Papillary (tactile corpuscle- touch sensation) capillaries
located
Reticular: hydration of skin, big blood vessels, sweat/sebaceous glands, lamellated (pacinian)
skin patterns - Answer Fingerprints-dermal ridges
Tension lines- wound healing & scarring "grain of wood"
Flexure Lines-joints & palms
Melanin - Answer orange/red-black
protects from UV radiation
Melanocytes (basal level) Di-peptide (2x tyrosine)
Carotene - Answer Yellow-orange
Vita A precursors
stored in adipose tissue
Hemoglobin - Answer Red
An iron-containing protein in red blood cells that reversibly binds oxygen(erythrocytes).
Freckles/Moles - Answer High melanin production, melanocytes
Albinism - Answer Absence of pigment in the skin, hair, and eyes...no tyronase
Erythema - Answer Redding of the skin (dilation of capillaries)
i.e. blushing
Pallor - Answer Decreased blood flow, pale or white appearance
i.e. u look like you've seen a ghost
,Red Lips - Answer Skin on lips extremely thin
Cyanosis - Answer Low oxygen bound to hemoglobin; bluish skin/tone
Hair - Answer skin epithelium; protection
Nails - Answer protection & gripping functions
Glands - Answer sweat glands (eccrine, apocrine, mammary) & sebaceous glands(holocrine)
eccrine glands - Answer most prevalent (water, electrolytes, lactic acid)
apocrine glands - Answer release in hair follicle, rich in protein, produce odor
ceruminous glands - Answer produce ear wax
mammary glands - Answer produce milk
Merocrine - Answer exocytosis
Holocrine - Answer sebaceous glands; cells rupture and release
wound - Answer lacerations, burns, skin cancers
Burns - Answer 1st degree: superficial damage
skin may develop erythema (redness)
2nd degree: partial thickness' pain, blistering, scarring
3rd degree: full thickness; deepest burn possible muscle or done, destruction to nerves.
Problems with dehydration and infection
skin cancer - Answer a harmful, malignant growth on the skin (tumors) most common: basal
cell carcinoma
, epithelium tissue - Answer epidermis; secretes and protects
ground substance - Answer extracellular fluid (gel or solid)
Fibrous proteins - Answer collagen fibers (20 types); resist tension, elastic fibers, exhibit
elasticity
Glycosaminoglycans (GAGs) - Answer charged molecules, attract water
Proteoglycans - Answer "bottle brush" like structure; slow pathogens, connect extracellular
matrix to the cell membrane
Glycoproteins - Answer bind plasma membranes to extracellular collagen and proteogylcans
collagenous fibers - Answer 25% of bodies protein, touch; resist stretching
reticular fibers - Answer thin collagen fibers with glycoprotein coat' spongelike (spleen and
lymph nodes)
elastic fibers - Answer Fibers made of elastin. ability to recoil (elasticity)
tight junctions - Answer lock cells together, impermeable seal (apical)
Desmosomes - Answer interweave cells and connect to intermediate filaments within cells.
Resist mechanical stress
Gap junctions - Answer interlink protein pores that allow substances to pass between cells
General Characteristics of epithelial tissue - Answer 1. Polarity
2. Specialized contacts
3. Avascular
4. Supported by CT
5. Innervated
6. Regenerative
Questions Well Answered 2026/2027
Newest Updated.
Integumentary functions: protection - Answer mechanical trauma, pathogens, outside
environment
Integumentary functions:Sensations - Answer Numerous sensory receptors
Integumentary functions:Thermoregulation - Answer sweat glands and vasomotion
Integumentary functions: Excretion - Answer lactic acid and urea
Integumentary functions: Vita D Synthesis - Answer exposure to cholesterol precursors to UV
radiation
Burn complications - Answer Infection, hypothermia, cancers
stratum basale - Answer cells are actively dividing stem cells; deepest level
stratum spinosum - Answer some cells mitotically active
stratum granulosum - Answer a layer of the epidermis that marks the transition between the
deeper, metabolically active strata and the dead cells of the more superficial strata
stratum lucidum - Answer Clear, transparent layer of dead keratinocytes (thick skin ONLY)
stratum corneum - Answer dead keratinocytes, slough off; most superficial layer
epidermis cells - Answer keratinocytes, melanocytes (color), merkel cells (touch)
90% of the dust=dead skin
40-50 day cycle
,Dermis - Answer Inner layer of skin; Papillary (tactile corpuscle- touch sensation) capillaries
located
Reticular: hydration of skin, big blood vessels, sweat/sebaceous glands, lamellated (pacinian)
skin patterns - Answer Fingerprints-dermal ridges
Tension lines- wound healing & scarring "grain of wood"
Flexure Lines-joints & palms
Melanin - Answer orange/red-black
protects from UV radiation
Melanocytes (basal level) Di-peptide (2x tyrosine)
Carotene - Answer Yellow-orange
Vita A precursors
stored in adipose tissue
Hemoglobin - Answer Red
An iron-containing protein in red blood cells that reversibly binds oxygen(erythrocytes).
Freckles/Moles - Answer High melanin production, melanocytes
Albinism - Answer Absence of pigment in the skin, hair, and eyes...no tyronase
Erythema - Answer Redding of the skin (dilation of capillaries)
i.e. blushing
Pallor - Answer Decreased blood flow, pale or white appearance
i.e. u look like you've seen a ghost
,Red Lips - Answer Skin on lips extremely thin
Cyanosis - Answer Low oxygen bound to hemoglobin; bluish skin/tone
Hair - Answer skin epithelium; protection
Nails - Answer protection & gripping functions
Glands - Answer sweat glands (eccrine, apocrine, mammary) & sebaceous glands(holocrine)
eccrine glands - Answer most prevalent (water, electrolytes, lactic acid)
apocrine glands - Answer release in hair follicle, rich in protein, produce odor
ceruminous glands - Answer produce ear wax
mammary glands - Answer produce milk
Merocrine - Answer exocytosis
Holocrine - Answer sebaceous glands; cells rupture and release
wound - Answer lacerations, burns, skin cancers
Burns - Answer 1st degree: superficial damage
skin may develop erythema (redness)
2nd degree: partial thickness' pain, blistering, scarring
3rd degree: full thickness; deepest burn possible muscle or done, destruction to nerves.
Problems with dehydration and infection
skin cancer - Answer a harmful, malignant growth on the skin (tumors) most common: basal
cell carcinoma
, epithelium tissue - Answer epidermis; secretes and protects
ground substance - Answer extracellular fluid (gel or solid)
Fibrous proteins - Answer collagen fibers (20 types); resist tension, elastic fibers, exhibit
elasticity
Glycosaminoglycans (GAGs) - Answer charged molecules, attract water
Proteoglycans - Answer "bottle brush" like structure; slow pathogens, connect extracellular
matrix to the cell membrane
Glycoproteins - Answer bind plasma membranes to extracellular collagen and proteogylcans
collagenous fibers - Answer 25% of bodies protein, touch; resist stretching
reticular fibers - Answer thin collagen fibers with glycoprotein coat' spongelike (spleen and
lymph nodes)
elastic fibers - Answer Fibers made of elastin. ability to recoil (elasticity)
tight junctions - Answer lock cells together, impermeable seal (apical)
Desmosomes - Answer interweave cells and connect to intermediate filaments within cells.
Resist mechanical stress
Gap junctions - Answer interlink protein pores that allow substances to pass between cells
General Characteristics of epithelial tissue - Answer 1. Polarity
2. Specialized contacts
3. Avascular
4. Supported by CT
5. Innervated
6. Regenerative
