The Integument Matching

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melanocyte

cell found in the epidermis that produces a dark pigment

stratum corneum

outermost layer of the epidermis

melanin

a dark pigment produced by melanocytes that protects the skin from ultraviolet radiation

stratum basale

a layer made of a single row of actively dividing keratinocytes

Langerhans cell

a macrophage found in the dermis

fibroblast

cellular component of the dermis the manufactures fibers and ground substance

reticular layer

deeper layer of the dermis that consists of dense, irregular connective tissue

stratum granulosum

epidermal layer that consists of multiple rows of keratinocytes that are beginning to fill with keratin and the nuclei are degenerating

stratum spinosum

epidermal layer that still shows some cell division and contains a large number of Langerhans cells

Merkel cell

found in the basal layer of the epidermis and associated with sensory nerve endings

eccrine sweat gland

gland that secretes sweat directly onto the surface of the epidermis via a duct

hair follicle

invagination of the epidermis in which a hair is anchored

keratinocyte

keratin-producing cell

stratum lucidum

layer found only in thick skin consisting of a few rows of flattened dead cells

adipocyte

main cell of the hypodermis and is filled with fat

dermis

makes up the greatest portion of the skin and is responsible for the structural strength of the skin

sebaceous gland

sebum-producing gland that secretes directly into the hair follicle

arrector pili muscle

small muscle attached to each hair follicle

epidermis

the outermost layer of the skin

hypodermis

thick layer of the integument made of loose areolar connective tissue rich with adipose tissue

pacinian corpuscle

touch receptor in the hypodermic that is sensitive to heavy pressure

Meissner's corpuscle

touch receptor in the hypodermic that is sensitive to light touch

papillary layer

uppermost, thin superficial layer of the dermis

dermal papilla

upward projections of the dermis that interdigitate with the epidermis to hold the layers together


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