Introduction
Epidermis
Review
Skin Functions
Hair and Nails
100

This subcutaneous layer stores fat and has large blood vessels.

Hypodermis

100

Cells that participate in immune response

Langerhans cells

100

This tissue can be found covering body surfaces and lining hollow organs.

Epithelial tissue

100

Cares for abrasions and minor burns (first degree or less)

Superficial epidermal wound healing

100

Whiter area of the nail body, obscures vascular tissue underneath.

Lunula

200

This region of the dermis is responsible for fingerprints and footprints.

Papillary dermis

200

Produce melanin protein for protection from ultraviolet light

Melanocytes

200

Cellular organelles that synthesize proteins

Ribosomes

200

Two methods in which body temperature is regulated

Evaporation of sweat and blood flow regulation

200

Sensory nerve ending surrounding each hair follicle that is sensitive to the touch.

Hair root plexus

300

This layer of the skin contains no blood vessels.

Epidermis

300

Layer that contains keratinocytes, melanocytes, and Merkel cells

Stratum basale layer

300

Neurons convert stimuli into these electrical signals

Action potentials

300

Tactile sensations (touch, pressure, vibration) as well as thermal sensations (warmth, coolness)

Cutaneous sensations

300

Sudoriferous glands responsible for waste removal and temperature regulation. Releases during emotional stress.

Eccrine sweat glands

400

Location for collagen and elastic fibers that contribute to the elasticity and strength of the skin.

The reticular region of the dermis

400

Dead keratinocytes slough off this layer

Stratum corneum

400

Organelle that synthesizes fatty acids and steroids

Smooth endoplasmic reticulum

400

Phase of deep wound healing in which granulation tissue forms.

Migratory phase?

400

Location of blood vessels that nourish the hair follicle.

Papilla

500

One of the following does NOT contribute to skin color: Hemoglobin, melanin, keratin, carotene

Keratin

500

This layer is present only in the skin of the fingertips, palms, and soles

Stratum lucidum

500

The process of converting DNA into RNA

Transcription

500

Deep wound healing phase in which blood clots unite wound edges.

Inflammatory phase

500

Epidermal band overlapping the edge of the nail body.

Cuticle

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