dermis
DER-mis
/ˈdɜːr.mɪs/
The thick, sensitive layer of skin beneath the outer epidermis, containing blood capillaries, nerve endings, sweat glands, and hair follicles.
In tattooing, the dermis is the crucial target layer; ink deposited here becomes permanent, whereas ink deposited in the outer epidermis will eventually shed.
The story behind the word. The word 'dermis' comes directly from the Greek word 'derma', meaning 'skin' or 'hide'. In ancient times, this root was used to describe animal hides prepared for writing or clothing. In modern anatomy, it was adopted to specifically designate the living, structural layer of skin beneath the protective outer barrier.
Word relationships
- corium: Corium is a highly technical anatomical synonym for the dermis, rarely used outside of medical literature.
- cutis: Cutis refers to the skin as a whole (including both dermis and epidermis), whereas dermis is specifically the sub-surface layer.
- epidermis: The epidermis is the outermost, non-vascular layer of skin that sits directly above the dermis.
Commonly confused with
- epidermis: The epidermis is the outer layer of skin that constantly regenerates and sheds, while the dermis is the deeper, permanent layer.
Word family
- dermal (adjective): Relating to the skin, especially the dermis.
- dermatology (noun): The branch of medicine concerned with the skin.
Collocations
- deep dermis
- dermis layer
- penetrate the dermis
- dermis and epidermis
Example sentences
- "The dermis, or corium, is a tough, flexible, and highly elastic structure, situated immediately beneath the epidermis." A classic anatomical description of the skin's layers. (Gray's Anatomy by Henry Gray)
- "If the tattoo needle does not penetrate deep enough to reach the dermis, the ink will fade away within weeks." Explaining the mechanics of a tattoo needle.
Memory hook
The DERMIS is where the needle goes DEEP to make the art permanent. Dermis is the deep skin layer.
When not to use
Do not use 'dermis' when referring generally to the visible surface of the skin, which is technically the epidermis.
Fun facts
- The dermis contains specialized cells called macrophages that 'eat' the tattoo pigment particles, trapping them in place and keeping the tattoo visible for a lifetime.
Related words
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