| filum terminale | A long, slender connective tissue (pia mater) strand extending from the extremity of the medullary cone to the internal aspect of the spinal dural sac (filum terminale internum); stout strands of connective tissue attaching the spinal dural sac to the coccyx (filum terminale externum), commonly called the coccygeal ligament. Synonym: filum terminale, nervus impar, terminal thread. (05 Mar 2000) |
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| ganglion terminale | One of the cells located along the terminal nerves, one of the scattered postganglionic autonomic neurons located in or close to the wall of the organ innervated; they are usually parasympathetic. Synonym: ganglion terminale. (05 Mar 2000) |
| velum terminale | A thin plate passing upward from the optic chiasm and forming the rostral boundary of the third ventricle; membrane closing the rostral neuropore. Synonym: lamina terminalis cerebri, lamina cinerea, terminal plate, velum terminale. (05 Mar 2000) |
| pial | <anatomy> Pertaining to the pia mater. Source: Websters Dictionary (01 Mar 1998) |
| pial funnel | The pia-lined channel in which each blood vessel entering the brain lies suspended; essentially, the pial funnel's are perivascular extensions of the subarachnoid space. (05 Mar 2000) |
| pial-glial membrane | The dual outer lining of the brain and spinal cord, composed of the glial limiting membrane and the pia mater. (05 Mar 2000) |
| terminal filum | A long, slender connective tissue (pia mater) strand extending from the extremity of the medullary cone to the internal aspect of the spinal dural sac (filum terminale internum); stout strands of connective tissue attaching the spinal dural sac to the coccyx (filum terminale externum), commonly called the coccygeal ligament. Synonym: filum terminale, nervus impar, terminal thread. (05 Mar 2000) |
| filum | A structure of filamentous or threadlike appearance. Origin: L. Thread (05 Mar 2000) |
| filum durae matris spinalis | The thread-like termination of the spinal dura mater, surrounding and fused to the filum terminale of the cord, and attached to the deep dorsal sacrococcygeal ligament; extends from S2-3 to Co2 vertebral levels. Synonym: filum durae matris spinalis. (05 Mar 2000) |
| filum of spinal dura mater | The thread-like termination of the spinal dura mater, surrounding and fused to the filum terminale of the cord, and attached to the deep dorsal sacrococcygeal ligament; extends from S2-3 to Co2 vertebral levels. Synonym: filum durae matris spinalis. (05 Mar 2000) |
| actin filament | One of the contractile elements in muscular fibres and other cells; in skeletal muscle, the actin filament's are about 5 nm wide and 100 um long, and attach to the transverse Z filament's. (05 Mar 2000) |
| axial filament | The central filament of a flagellum or cilium; with the electron microscope it is seen as a complex of nine peripheral diplomicrotubules and a central pair of microtubules. Synonym: axoneme. (05 Mar 2000) |
| bipolar filament | <cell biology> Filaments that have opposite polarity at the two ends, classic example is the thick filament of striated muscle. (18 Nov 1997) |
| parabasal filament | Term formerly used for rhizoplast. (05 Mar 2000) |
| glial filament | <cell biology> Intermediate filaments of glial cells, made of glial fibrillary acidic protein. (17 Dec 1997) |