loading...| Preferred Name |
meninx |
| Synonyms |
meninx primitiva layer of meninges meningeal layer |
| Definitions |
Membrane organ that surrounds the brain and the spinal cord. |
| ID |
http://purl.obolibrary.org/obo/UBERON_0002360 |
| database_cross_reference |
EMAPA:32660 UMLS:C0025285 MAT:0000113 CALOHA:TS-1177 BTO:0000144 MA:0001113 EV:0100312 MESH:D008578 ZFA:0001355 GAID:687 VHOG:0001295 FMA:9589 TAO:0001355 NCIT:C12348 EFO:0000867 OpenCyc:Mx4rwDOl8JwpEbGdrcN5Y29ycA http://uri.neuinfo.org/nif/nifstd/nlx_anat_090204 |
| definition |
Membrane organ that surrounds the brain and the spinal cord. |
| depicted_by |
http://upload.wikimedia.org/wikipedia/commons/4/48/Illu_meninges.jpg |
| develops_from | |
| external_definition |
Membrane covering the brain and spinal cord. It is represented by a single layer in fishes, two in amphibians, reptiles and birds and three in mammals (named dura mater, arachnoid and pia mater). [TFD][VHOG] |
| external_ontology_notes |
Not consider part of the CNS/neuraxis in FMA |
| fma_set_term | |
| has_exact_synonym |
layer of meninges meningeal layer |
| has_narrow_synonym |
meninx primitiva |
| has_obo_namespace |
uberon |
| has_relational_adjective |
meningeal |
| homology_notes |
In fishes, the meninges consist of a single membrane, the primitive meninx, wrapped around the brain and spinal cord. With the adoption of terrestrial life, the meninges doubled. In amphibians, reptiles, and birds, the meninges include a thick outer dura mater derived from mesoderm and a thin inner secondary meninx. (...) In mammals, the dura mater persists, but division of the secondary meninx yields both the arachnoid and the pia mater from ectomesoderm.[well established][VHOG] |
| id |
UBERON:0002360 |
| immediate transformation of | |
| in_subset |
http://purl.obolibrary.org/obo/uberon/core#uberon_slim http://purl.obolibrary.org/obo/uberon/core#organ_slim http://purl.obolibrary.org/obo/uberon/core#pheno_slim |
| label |
meninx |
| notation |
UBERON:0002360 |
| part_of | |
| prefLabel |
meninx |
| taxon_notes |
Whereas cyclostomes and fishes only have a single envelope called the primitive meninx, amphibians have two layers, consisting of an outer dura mater which is extremely dense and protective, and a pia-arachnoid or secondary meninx which is more delicate and vascular. Mammals have three meninges: pia mater (which follows all the convolutions of the brain and is the most interior), the arachnoid layer (which is delicate and sends strands to the pia mater), and the dura mater (the outer, more protective meninx). |
| treeView | |
| subClassOf |
http://purl.obolibrary.org/obo/UBERON_0010314 |