An arachnoid mater that is part of a spinal cord [Automatically generated definition]. [ OBOL:automatic ]
Synonyms: arachnoid of spinal cord arachnoid mater of spinal cord spinal cord arachnoid arachnoid mater of neuraxis of spinal cord spinal cord arachnoid mater of neuraxis
Term information
- VHOG:0000234
- EMAPA:17805
- MA:0001131
organ_slim
The middle membrane of the three mammalian meninges covering the brain and spinal cord. [TFD][VHOG]
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]