Definition of Zygosphene. Meaning of Zygosphene. Synonyms of Zygosphene

Here you will find one or more explanations in English for the word Zygosphene. Also in the bottom left of the page several parts of wikipedia pages related to the word Zygosphene and, of course, Zygosphene synonyms and on the right images related to the word Zygosphene.

Definition of Zygosphene

Zygosphene
Zygosphene yg"o*sphene, n. [Gr. ? a yoke + ? a wedge.] (Anat.) A median process on the front part of the neural arch of the vertebr[ae] of most snakes and some lizards, which fits into a fossa, called the zygantrum, on the back part of the arch in front.

Meaning of Zygosphene from wikipedia

- The zygosphene-zygantrum articulation is an accessory joint between vertebrae found in several lepidosauromorph reptiles. This pivot joint consists of...
- overlapping, and of a pair of anterior wedge-shaped processes called zygosphene, ****ing into a pair of corresponding concavities, zygantrum, just below...
- less pronounced accessory articular processes (at the time identified as zygosphene-zygantrum articulations). The rocks in which these fossils were discovered...
- lacing. The marginal teeth are stout, bicarinate and smooth or striated. Zygosphenes and zygantra are absent, incipient or large and functional. Prognathodon...
- found in several different reptile lineages; a known example are the zygosphene-zygantrum articulations found in snakes. Hyposphene-hypantrum articulations...
- centrum all contributing to the height in equal measures. The roof of the zygosphene slopes at a steep angle and its junction with the neural spine is blunt...
- vertebrae have tall, straight neural spines that lack any processes or zygosphene-zygantrum articulation, a joint found in most squamates. The caudal vertebrae...
- swollen moving anterior to posterior, indicative of pachyostotic nature. Zygosphenes presence are notable in some vertebrae. They project anteriorly from...
- to that of the other species in its general proportions and the strong zygosphene-zygantrum articulation. C. iguanavus can be differentiated in its central...
- process; coalescent infra- and suprastapedial processes of quadrate; zygosphene-zygantrum complex absent; synapophyses of the cervical vertebrae extending...