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13 Cards in this Set
- Front
- Back
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What cells express help express secretions from the secretory piece into the eccrine sweat gland duct? (cells that hang out near the border of the tubule)
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Myoepithelial cell
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What is the cuticle of the nail called?
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The eponychium
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What big cells are located in the dermal papillae? What do they detect
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Meissner's cells. Touch
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What nerve cells extend in the epidermis? What do they detect?
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Free nerve endings. They detect nociception and temperature.
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What large, ovoid nerves are in the reticular dermis and subcutaenous fat layer? What do they detect?
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These are the Pacinian corpuscle. They sense pressure.
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Where are mast cells located in the skin?
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Near small blood vessels in the dermis.
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Describe a lymphatic capillary
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It is a tiny vessel made of a tube of endothelium found in the papillary layer of the dermis. It picks up excess fluid and particulate matter and transports the fluid to lymph nodes for cleaning
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What type of neuron has cutaneous receptors?
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Somatic sensory neurons
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What are the differences between old and young skin?
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1. Number of squaemous and granular layers decrease.
2. Rete ridges become less prominent. Skin more sensitive to abrasion 3. Activity of eccrine sweat glands and sebacious decrease, although number may stay the same. Old people must avoid overheating 4. Skin wrinkles and becomes lax |
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What do squaemous layer keratinocytes secrete? What do they do?
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Lamellar granules. Create a waterproof layer.
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What do granular layer keratinocytes secrete? What does it do?
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Keratohyalin granules. They aggregate keratin into a mass
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What do squaemous layer keratinocytes secrete? What do they do?
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Lamellar granules. Create a waterproof layer.
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What do granular layer keratinocytes secrete? What does it do?
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Keratohyalin granules. They aggregate keratin into a mass
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