The Dermis and Hypo dermis

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Description and Tags

second and third layer

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7 Terms

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The Dermis

A Strong, flexible connective tissue, 2 Layers(Innervated and vascular)

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What are the key features of the papillary layer?

Superficial 20% of dermis, capillary network, dermal papillae connect epidermis, free nerve endings (pain), Meissner’s corpuscles (touch), ridges form fingerprints.

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What are key features of the reticular layer?

Deeper thick layer with dense irregular CT, collagen/elastin, larger vessels/glands, flexure lines at joints, Pacinian corpuscles for pressure

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Hypodermis

Not really a layer of skin, insulation, shock absorption, support for upper skin layers

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Pacinian Corpuscles

looks like onion in cross section, detect deep pressure and vibration. Pressure, pressin, Pacinian

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Ruffini’s corpuscles

Detect Heat and skin stretch, Ruffini=Warm and stretchy

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Krause’s End bulb

Detect cold sensation, krause=cold