| commissura palpebrarum medialis | The union of the upper and lower eyelids adjacent to the medial angle. Synonym: commissura palpebrarum medialis. (05 Mar 2000) |
|---|---|
| commissura posterior cerebri | A thin band of white matter, crossing from side to side beneath the habenula of the pineal body and over the aditus ad aqueductum cerebri; it is largely composed of fibres interconnecting the left and right pretectal region and related cell groups of the midbrain; dorsally, it marks the junction of the diencephalon and mesencephalon. Synonym: posterior cerebral commissure. (05 Mar 2000) |
| commissura posterior grisea | central and lateral intermediate substance |
| commissura ventralis alba | A narrow band of white substance bordering on the anterior median fissure of the spinal cord in front of the anterior gray commissure, and consisting of nerve fibres crossing over from one half of the spinal cord to the other. Synonym: commissura alba, anterior white commissure, commissura ventralis alba, ventral white column. (05 Mar 2000) |
| commissurae supraopticae | The commissural fibres that lie above and behind the optic chiasm. Synonym: Ganser's commissures, Gudden's commissures, Meynert's commissures, supraoptic commissures. (05 Mar 2000) |
| commissural | Relating to a commissure. (05 Mar 2000) |
| commissural cell | A neuron whose axon passes to the opposite side of the neuraxis. Synonym: heteromeric cell. (05 Mar 2000) |
| commissural cheilitis | Inflammation and fissuring radiating from the commissures of the mouth secondary to predisposing factors such as lost vertical dimension in denture wearers, nutritional deficiencies, atopic dermatitis, or Candida albicans infection. Synonym: angular stomatitis, commissural cheilitis, perleche. (05 Mar 2000) |
| commissural fibres | Nerve fibre's crossing the midline and connecting two corresponding parts or regions of the nervous system. (05 Mar 2000) |
| commissural myelotomy | Section of the midline transverse fibres of the spinal cord for the treatment of intractable pain. Synonym: commissural myelotomy, commissurotomy. (05 Mar 2000) |
| commissure | <plant biology> A join or seam, in plants, the interfacing of two fused carpels in an ovary. (09 Oct 1997) |
| commissure of cerebral hemispheres | <anatomy> A great commissure (connection) between the two cerebral hemispheres (right and left). (13 Nov 1997) |
| commissure of fornix | The triangular subcallosal plate of commissural fibres resulting from the converging of the right and left fornix bundles which exchange numerous fibres and which curve back in the contralateral fornix to end in the hippocampus of the opposite side. Synonym: commissura hippocampi, commissure of fornix, delta fornicis, hippocampal commissure, psalterium, transverse fornix. (05 Mar 2000) |
| commissure of habenulae | The connection between the right and left habenular nuclei; the decussation of fibres of the two striae medullares, forming the dorsal portion of the peduncle of the pineal body. Synonym: commissure of habenulae, habenular commissure. (05 Mar 2000) |
| commissure of inferior colliculi | Nerve fibres on the midline between the two inferior colliculi connecting the colliculi and containing some fibres originating from nontectal nuclei. (05 Mar 2000) |