Anatomy | Physiology | Epidermis | Glands | Cells |
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What is the hypodermis?
The component that connects to the skin and serves as a storage repository for fat.
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What is a water barrier ?
Keratin and oils in the skin reduce water loss through evaporation and form a barrier against water infusion.
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What is stratum granulosum?
The layer of somewhat flatten cells just superficial to stratum spinosum and inferior to the stratum lucidum.
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What is the eccrine glands?
The glands that empty directly into the skin.
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What are Merkel cells?
The cells of the epidermis that function as touch receptors.
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What is the papillary layer?
Fingerprints are derived from patterns here.
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What is temperature regulation?
Capillaries dilate to dissipate heat and constrict to conserve heat. Sweat evaporation provides a cooling effect.
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What is stratum spinosum?
The layer of the epidermis superior to stratum basale and inferior to stratum granulosum.
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What is sebaceous glands?
Produces a substance called sebum.
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What is lipocytes?
The hypodermis is the location for these fat cells.
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What is arrector pili?
These tiny muscles cause “goose-bumps” when we are cold or frightened.
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What is vitamin d production?
Sunlight converts modified cholesterol molecules to vitamin D, which is essential for bone health.
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What is stratum basale?
The innermost layer that absorbs nutrients from the dermis.
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What is chemical reaction caused by bacteria ?
The unpleasant odor when a person sweats.
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What is melanocytes?
These specialized cells responsible for skin color.
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What is keratin?
The tough protein that strengthens hair and nails.
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What is waste elimination?
Urea and uric acid are eliminated in sweat.
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What is stratum corneum?
The layer of the epidermis that consists of dead cells filled with keratin.
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What is apocrine and eccrine glands?
The two types of sudoriferous glands.
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What is keratinocytes?
Cells within the epidermis that produce keratin.
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What is the reticular layer?
The layer of the dermis that contains blood vessels sweat and oil glands, involuntary muscles, hair follicles and nerve endings.
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What is sensory perception?
Receptor cells transmit information about touch, pressure, vibration, pain, and temperature to the central nervous system.
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What is stratum lucidium?
The clear layer of thick skin found on the palms of the hands, fingers, soles of the feet and toes.
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What is sweat?
A chemical waste product that includes urea, uric acid, and salts that protects against bacteria.
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What is melanocytes?
The cells in individuals with albinism do not produce melanin.
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