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9 Cards in this Set
- Front
- Back
Function |
Protective plate Counterforce to fingertip to increase sensory input of touch |
|
Nail root |
aka Germinal matrix lies beneath skin and behind fingernail Extends several mm into finger Produces most of the volume of the nail and nail bed Its edge is the white, crescent shaped structure called the lunula/lunule |
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Nail bed |
aka sterile matrix Extends from the edge of the lunula to the hyponychium Contains the blood vessels, nerves, and melanocytes |
|
Nail plate |
Actual finger nail Composed of translucent keratin Blood vessels underneath give the nail its pink appearance Grooves along the inner length of the nail plate anchor the nail to the nail bed |
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Eponychium (cuticle) |
Between the skin of the finger and the nail plate Fuses the skin to the nail plate |
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Perionychium (Paronychial edge) |
Skin overlying the nail plate on its sides Site of hangnails, ingrown nails, and paronychia |
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Hyponychium |
Junction between the free edge of the nail and the skin |
|
Finger nail growth |
3mm/month |
|
Toe nail growth |
1mm/ month |