Topic Set 8: Dermis Layers & Skin Lesions
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11 Terms
What are the two layers of the dermis?
Papillary layer (20%) and reticular layer (80%)
What tissue forms the papillary layer of the dermis?
Areolar connective tissue
What is the function of dermal papillae?
Connect dermis to epidermis
What tactile receptor is located in the papillary layer?
Meissner's corpuscles
What tissue forms the reticular layer of the dermis?
Dense irregular connective tissue
What tactile receptor is located in the reticular layer?
Pacinian corpuscles
What are stretch marks?
Ruptured collagen fibers in the dermis
What layer forms tension lines?
Reticular layer of the dermis
What causes a blister?
Repeated trauma separating epidermis and dermis into a fluid pocket
Why are tattoos permanent?
Ink is deposited into the dermis
What is a keloid?
Thickened scar tissue from excess collagen during wound healing