A fold of skin that covers and protects part of the eyeball. Examples: upper eyelid, lower eyelid, nictitating membrane [ http://orcid.org/0000-0002-6601-2165 ]
Synonyms: palpebra eye lid blepharon
Term information
- BTO:0002241
- null:http://www.snomedbrowser.com/Codes/Details/265782007
- OpenCyc:Mx4rvVi4m5wpEbGdrcN5Y29ycA
- VHOG:0000016
- EV:0100338
- FMA:54437
- EHDAA:9037
- null:http://en.wikipedia.org/wiki/Eyelid
- MA:0000268
- EHDAA2:0000487
- MESH:D005143
- null:http://linkedlifedata.com/resource/umls/id/C0015426
- NCIT:C12713
- GAID:72
- UMLS:C0015426 (ncithesaurus:Eyelid)
- EMAPA:17829
uberon_slim, pheno_slim
Consider adding 'eye surface', like MA
FMA divides this into skin, fascia, conjunctiva
In humans the upper and lower eyelid consists of the following layers, starting anteriorly: (1) skin, (2) a layer of subcutaneous connective tissue, (3) a layer of striated muscle fibres of the orbicularis muscle, (4) a layer of submuscular connective tissue, (5) a fibrous layer, including the tarsal plates, (6) a layer of smooth muscle, (7) the palpebral conjunctiva.
Term relations
- organ part
- ectoderm-derived structure
- protects some ocular surface region
- contributes to morphology of some camera-type eye
- part of some camera-type eye