ANSWERS: 1
  • Odontoid process: [1] Apparently, same as the dens, i.e., a process of the axis (2nd cervical vertebra) which projects anteriorly into the atlas (1st cervical). Embryologically, this process results from fusion of the axis intercentrum and the atlas centrum in mammals, creating a rotary joint about which rotary movement occurs. In other tetrapods a variety of arrangements are possible, including the mammal-like arrangement. However, since the condyle is not doubled in these forms, the odontoid process does not have the same significance or necessarily have the same function. [2] a small process on the anterior surface of the atlantal (first cervical) centrum that fits into a cavity on the occipital condyle (in the back of the skull). Used in this sense at Phylogeny of Stegocephalians. you can check out http://www.palaeos.com/Vertebrates/Lists/Glossary/GlossaryO.html

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