How do the superior and articular processes of the differ from the same processe
ID: 94398 • Letter: H
Question
How do the superior and articular processes of the differ from the same processes on a "typical" ? How doss this difference contribute to the special movement allowed at the occipital and joints? Notice that when two lumbar vertebrae are put together, little to no lateral rotation is allowed because of the shape of the bones. Why do you think they interact in this manner? What part of the vertebral column is removed when a is performed? Needles inserted into the thoracic cavity must always be placed along the superior border of a rib so as not to injures important structures. What important structure could be damaged by insertion of a needle too the inferior of a rib?Explanation / Answer
typical cervical vertebra have large spinal canals, oval shaped vertebral bodies and articular surfaces oriented obliquely.
their most characteristics features are their BIFID SPINOUS PROCESSES and the FORAMAN in their transverse processes.
the first and second cervical vertebra are atypical.
the first cervical vertebra is known as atlas and it is remarkable for having no body.
it contains an anterior tubercle instead.
its superior articular facet articulates with the occipital condyles of the skull and are oriented in a roughly parasagittal plane.
the head thus moves forward and backwards on this vertebra.
the second cervical vertebra contains the prominent odontoid process or dens which projects superiorly from its body.
it articulates with the anterior tubercle of the atlas , forming a pivotal joint.
side to side movement of head takes place about this joint.
7th cervical vertebra is sometimes consider as atypical since it lacks a bifid spinous process.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.