A developing mesenchymal capsule that covers the developing brain and spinal cord and is the precursor of the meningeal cluster. In mammals this gives rise to the arachnoid mater, pia mater and dura mater. In cyclostomes and fishes, the future meninx gives rise to a single meningeal layer, the primitive meninx. [ http://orcid.org/0000-0002-6601-2165 ]
Synonyms: primary meninx
Term information
- EHDAA2:0004453
pheno_slim
decide whether to treat the endo and ecto meninx as subtypes or parts of the future meninx
the outermost mesenchymal covering of the developing brain and spinal cord that is composed of tough fibrous connective tissue from which the arachnoid mater, pia mater and dura mater are formed[MP:0009726]d