Flashcards
Unit 2
Cards in this deck (15)
- 1What are the two main layers of the Cutaneous Membrane?Epidermis and Dermis
- 2What are the 4 types of cells that are found in the Epidermis?Keratinocytes, Melanocytes, Langerhans and Merkel Cells
- 3Keratinocytes (Epidermis of the Cutaneous Membrane)These cells are responsible for the skin thickening and toughening. They contain keratin that makes the skin somewhat water resistant.
- 4MelanocytesThey contain melanin which is the reason why different people have different skin pigmentation. The different skin pigmentation also helps with the different levels of protection against UV radiation
- 5Merkel CellsThey function like sensory neurons when they get stimulated since they help with sensations
- 6Langerhans CellsThese large nucleated cells are bigger than macrophages and help the immune system by fighting against foreign bodies
- 7Stratum CorneumThe upper most layer that also has the most dead cells
- 8Stratum LucidumThis layer is only found in thick skin like the soles of a persons foot and has epidermal ridges on it
- 9Stratum GranulosumThis layer produces lamella granules, helps make the skin stronger and produces keratin as a water repellent. Apoptosis (Natural cell death) begins in the granulosum, the cells are partly dead in this layer and accumulate on the stratum corneum when completely dead.
- 10Stratum SpinosumThis layer has keratinocytes
- 11Stratum GerminativumThis layer is also know as the Basale
- 12DermisIt is below the epidermis and attached to the subcutaneous tissue. The Dermis is composed of connective tissue and contains sensory neurons and has capillaries that supply nutrients to epidermis.
- 13Subcutaneous LayerIt is also called the hypodermis and superficial fascia and it stabilizes position of skin relative to underlying tissues. It has a loose connective tissue that stores fat which influences body shape. The distribution of subcutaneous fat differs between sexes.
- 14What are the Accessory StructuresHair, Nails, Exocrine Glands
- 15HairHair grows out of the follicle from root to shaft. The follicles are found within the SC tissue and dermis. Hairs provide sensory input, protect ears from foreign material, protect the scalp from UV damage
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- Flashcards on Unit 2, created by jamiec2119 on 28/09/2014.
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