| pyramis vermis | A subdivision of the inferior vermis of the cerebellum between the tuber and the uvula. Synonym: pyramis vermis, cerebellar pyramid. Pyramid of vestibule, the upper triangular extremity of the crista vestibuli. Synonym: pyramis vestibuli. (05 Mar 2000) |
|---|
| pyramis | A pyramid. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| pyramis medullae oblongatae | An elongated, white prominence on the ventral surface of the medulla oblongata on either side along the anterior median fissure, corresponding to the pyramidal tract. Synonym: pyramis medullae oblongatae, anterior column of medulla oblongata, anterior pyramid. (05 Mar 2000) |
| pyramis renalis | One of a number of pyramidal masses seen on longitudinal section of the kidney; collectively, they constitute the renal medulla, and contain part of the secreting tubules and the collecting tubules. Synonym: pyramis renalis, malpighian pyramid, medullary pyramid. (05 Mar 2000) |
| pyramis tympani | A conical projection posterior to the vestibular window in the middle ear; it is hollow and contains the stapedius muscle. Synonym: pyramid of tympanum, pyramidal eminence, pyramis tympani. (05 Mar 2000) |
| pyramis vestibuli | pyramid of vestibule |
| vena vermis inferior | A vein draining part of the inferior part of the cerebellum; it courses on the inferior surface of the vermis and terminates in the straight sinus. Synonym: vena vermis inferior. (05 Mar 2000) |
| vena vermis superior | A vein draining part of the superior part of the cerebellum; it runs on the superior surface of the vermis to terminate in the internal cerebral vein. Synonym: vena vermis superior. (05 Mar 2000) |
| vermis | 1. A worm; any structure or part resembling a worm in shape. 2. The narrow middle zone between the two hemispheres of the cerebellum; the portion projecting above the level of the hemispheres on the upper surface is called the superior vermis; the lower portion, sunken between the two hemispheres and forming the floor of the vallecula, is the inferior vermis. Origin: L. Worm (05 Mar 2000) |
| vermis folium | A small posterior subdivision of the superior vermis of the cerebellum. Synonym: folium vermis. (05 Mar 2000) |
| pyramid of vermis | A subdivision of the inferior vermis of the cerebellum between the tuber and the uvula. Synonym: pyramis vermis, cerebellar pyramid. Pyramid of vestibule, the upper triangular extremity of the crista vestibuli. Synonym: pyramis vestibuli. (05 Mar 2000) |
| superior vein of vermis | A vein draining part of the superior part of the cerebellum; it runs on the superior surface of the vermis to terminate in the internal cerebral vein. Synonym: vena vermis superior. (05 Mar 2000) |
| inferior vein of vermis | A vein draining part of the inferior part of the cerebellum; it courses on the inferior surface of the vermis and terminates in the straight sinus. Synonym: vena vermis inferior. (05 Mar 2000) |
| tuber of vermis | The posterior division of the inferior vermis of the cerebellum located between the folium and the pyramis. Synonym: tuber dorsale, tuber of vermis, tuber valvulae. (05 Mar 2000) |
| tuber vermis | The posterior division of the inferior vermis of the cerebellum located between the folium and the pyramis. Synonym: tuber dorsale, tuber of vermis, tuber valvulae. (05 Mar 2000) |
| uvula vermis | A triangular elevation on the vermis of the cerebellum, lying between the two tonsils anterior to the pyramis. Synonym: uvula cerebelli. (05 Mar 2000) |