1. Match each of the following epidermal cell types with its function.

a. b. c. d. keratinocytes
a. b. c. d. melanocytes
a. b. c. d. Merkel cells
a. b. c. d. Langerhans cells
a. presents antigens to killer T lymphocytes
b. sensory receptor for touch
c. produces a tough fibrous protein that gives the epidermis its protective qualities
d. responsible for skin pigmentation


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2. Match each of the following skin strata with its description.

a. b. c. d. e. stratum basale
a. b. c. d. e. stratum spinosum
a. b. c. d. e. stratum granulosum
a. b. c. d. e. stratum lucidum
a. b. c. d. e. stratum corneum
a. a thin translucent band consisting of a few rows of flat, dead, keratinocytes
b. 3-5 layers of flattened keratinocytes possessing tonofilaments, keratohyaline granules, and lamellated granules
c. single row of cells composed of keratinocyte stem cells, melanocytes and Merkel cells
d. many cell layers of dead keratinocytes filled with keratin
e. several cell layers thick composed of keratinocytes, possessing tonofilaments, and Langerhan's cells


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3. Match each of the following integumentary system layers with its primary tissue type.

a. b. c. d. epidermis
a. b. c. d. hypodermis
a. b. c. d. papillary layer of dermis
a. b. c. d. reticular layer of dermis
a. keratinized stratified squamous epithelium
b. adipose connective tissue
c. areolar connective tissue
d. dense irregular connective tissue


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4. Match each of the following structures with its description.

a. b. c. d. lines of cleavage
a. b. c. d. flexure lines
a. b. c. d. stretch marks
a. b. c. d. dermal ridges
a. elevated regions of the papillary layer
b. invisible lines of separation that occur between collagen bundles
c. deep creases on the surface of the skin resulting from continual folding where the dermis attaches tightly to underlying structures
d. silvery white scars which result from dermal tearing which commonly occurs in obesity and pregnancy


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5. Match each of the following with its associated skin color.

a. b. c. d. hemoglobin
a. b. c. d. carotene
a. b. c. d. cyanosis
a. b. c. d. melanin
a. ranges from yellow to reddish to brown to black
b. yellow to orange
c. pink
d. blue

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6. Match each of the following hair structures with its description.

a. b. c. d. e. root
a. b. c. d. e. cuticle
a. b. c. d. e. shaft
a. b. c. d. e. medulla
a. b. c. d. e. cortex
a. the portion of the hair that is embedded in the skin
b. region of a hair that projects above the skin surface
c. the central core of a hair, consisting of large cells and air spaces
d. the intermediate layer of a hair composed of several layers of flattened cells
e. superficial covering of a hair consisting of a single layer of cells that overlap one another

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7. Match each of the following hair follicle associated structures with its description.

a. b. c. d. e. hair matrix
a. b. c. d. e. connective tissue root sheath
a. b. c. d. e. hair bulb
a. b. c. d. e. root hair plexus
a. b. c. d. e. arrector pili
a. superficial wall of the hair follicle which is derived from the dermis
b. a knot of sensory n. erve endings wrapped around the base of a hair follicle
c. the expanded, deep region of a hair follicle
d. epithelial cells located superior to the connective tissue papillae
e. bundle of smooth muscle tissue running from the superficial dermis to the hair follicle that is responsible for producing goose bumps

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8. Match each of the following glands with its location.

a. b. c. d. e. sebaceous glands
a. b. c. d. e. eccrine sudoriferous glands
a. b. c. d. e. apocrine sudoriferous glands
a. b. c. d. e. ceruminous glands
a. b. c. d. e. mammary glands
a. line the external ear canal
b. most abundant on the palms, soles, and forehead
c. associated with the entire skin except the nipples and parts of the external genitalia
d. pectoral region
e. axillary, anal, and genital regions

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9. Match each of the following integumentary system glands with its product.

a. b. c. d. e. sebaceous gland
a. b. c. d. e. eccrine sudoriferous gland
a. b. c. d. e. apocrine sudoriferous gland
a. b. c. d. e. ceruminous gland
a. b. c. d. e. mammary gland
a. components of earwax
b. milk
c. sweat
d. components of sweat plus fatty substances and proteins
e. oil

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10. Match each of the following nail structures with its description.

a. b. c. d. e. f. g. h. body
a. b. c. d. e. f. g. h. nail bed
a. b. c. d. e. f. g. h. root
a. b. c. d. e. f. g. h. free edge
a. b. c. d. e. f. g. h. nail matrix
a. b. c. d. e. f. g. h. lunula
a. b. c. d. e. f. g. h. eponychium
a. b. c. d. e. f. g. h. nail fold
a. epidermis on which the nail rests
b. region of the proximal nail fold that projects onto the nail surface
c. proximal region of the nail, embedded in the skin
d. white, crescent-shaped area under the nail's proximal region
e. distal edge of the nail
f. actively growing part of the nail
g. visible, attached part of the nail
h. skin folds on the lateral and proximal borders of the nail

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11. Match each of the following types of burns with its description.

a. b. c. first-degree burn
a. b. c. second-degree burn
a. b. c. third-degree burn
a. the entire thickness of the skin is consumed resulting in the burned area appearing white, red, or blackened
b. damage to only the epidermis which results in redness, swelling, and pain
c. injury to the epidermis and the superficial region of the dermis resulting in redness, swelling, pain, and blisters


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12. Match each of the following forms of skin cancer with its description.

a. b. c. basal cell carcinoma
a. b. c. squamous cell carcinoma
a. b. c. melanoma
a. arises from the keratinocytes of the stratum spinosum with lesions appearing as scaly, irregular, reddened small, rounded elevations that tend to grow rapidly and metastasize if not removed
b. least malignant form of skin cancer in which the cells of the stratum basale proliferate and invade the dermis and hypodermis causing tissue destruction
c. this most dangerous form of cancer can originate wherever there is pigment, but often arises from existing moles, metastasizing rapidly into surrounding circulatory vessels

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13. Match the following components of the ABCDE rule for recognizing melanoma.

a. b. c. d. e. Asymmetry
a. b. c. d. e. Border irregularity
a. b. c. d. e. Color
a. b. c. d. e. Diameter
a. b. c. d. e. Elevation
a. the two halves of a spot or a mole do not match
b. pigmented spot possesses notches and indentations
c. larger than 6 mm
d. rises above the skin surface
e. inconsistent pigmentation

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14. Match each of the following skin components with the embryonic structure from which it develops.

a. b. c. dermis
a. b. c. melanocytes
a. b. c. hair follicle
a. neural crests
b. mesoderm
c. ectoderm

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15. Match each of the following conditions with its description.

a. b. c. d. e. f. g. albinism
a. b. c. d. e. f. g. alopecia
a. b. c. d. e. f. g. boil
a. b. c. d. e. f. g. impetigo
a. b. c. d. e. f. g. keloid
a. b. c. d. e. f. g. psoriasis
a. b. c. d. e. f. g. vitiligo
a. infection and inflammation of hair follicles and sebaceous glands that has spread into the underlying hypodermis
b. large, unsightly mass of scar tissue at the skin surface produced by excessive and prolonged proliferation of connective tissue during the healing of skin wounds
c. fluid-filled, raised lesions, common around the mouth and nose, that develop a yellow crust and eventually rupture
d. chronic inflammatory condition, resulting from an over proliferation of the epidermis, characterized by reddened epidermal papules covered with dry, silvery scales
e. any condition involving absence or loss of hair
f. an abnormality of skin pigmentation characterized by light spots surrounded by areas of normally pigmented skin
g. inherited condition in which a person's melanocytes do not produce melanin resulting in pink skin and pale yellow or white hair