Cervical Vertebrae

In vertebrates, cervical vertebrae (singular: vertebra) are those vertebrae immediately inferior to the skull.

Thoracic vertebrae in all mammalian species are defined as those vertebrae that also carry a pair of ribs, and lie caudal to the cervical vertebrae. Further caudally follow the lumbar vertebrae, which also belong to the trunk, but do not carry ribs. In reptiles, all trunk vertebrae carry ribs and are called dorsal vertebrae.

In many species, though not in mammals, the cervical vertebrae bear ribs. In many other groups, such as lizards and saurischian dinosaurs, the cervical ribs are large; in birds, they are small and completely fused to the vertebrae. The transverse processes of mammals are homologous to the cervical ribs of other amniotes.

In humans, cervical vertebrae are the smallest of the true vertebrae, and can be readily distinguished from those of the thoracic or lumbar regions by the presence of a foramen (hole) in each transverse process, through which passes the vertebral artery.

The remainder of this article focuses upon human anatomy.

Read more about Cervical Vertebrae:  General Characteristics (C3-C6), Special Cervical Vertebrae (C1, C2, and C7), Movements of The Cervical Spine, Landmarks, Clinical Significance, Additional Images

Other articles related to "cervical vertebrae, cervical, vertebrae":

Cervical Vertebrae - Additional Images
... Position of cervical vertebrae (shown in red) Vertebral column Vertebral column X-Ray of cervical vertebrae X-ray of cervical spine in flexion and extension First cervical vertebra ...
Spinosaurus - Discovery and Naming - Specimens
... piece of the left maxilla that was described but not drawn 20 teeth 2 cervical vertebrae 7 dorsal (trunk) vertebrae 3 sacral vertebrae 1 caudal vertebra 4 thoracic ribs and gastralia ... Spinosaurus holotype was a chimera, composed of vertebrae and neural spines from a carcharodontosaurid similar to Acrocanthosaurus and a dentary from Baryonyx or Suchomimus ... NMC 50791, held by the Canadian Museum of Nature, is a mid-cervical vertebra which is 19.5 centimeters (7.7 in) long from the Kem Kem Beds of Morocco ...
Elasmosaurus - Description
... at the tip of the snout) and 71 neck (cervical) vertebrae ... The neck vertebrae immediately following the skull were long and low, and had longitudinal lateral crests ... Like most elasmosaurids, Elasmosaurus had around three pectoral vertebrae ...
Plesiosaurus - Description - Vertebral Column
... There are approximately 40 cervical vertebrae (neck vertebrae), with different specimens preserving 38 to 42 cervical vertebrae ... four or five in the holotype specimen) of "pectoral" vertebrae from the neck-torso transition, approximately 21 dorsal or back vertebrae, three or more sacral ... Generally, the centra of the cervical vertebrae are relatively elongated, being slightly longer than tall ...
Homo Ergaster - Sociality - Linguistic Use
... This was based on Turkana Boy's cervical vertebrae, which were far narrower than in later humans ... Discoveries of cervical vertebrae in Dmanisi, Georgia some 300,000 years older than those of Turkana Boy are well within the normal human range ... suffered from a disease of the spinal column that resulted in narrower cervical vertebrae than in modern humans (as well as the older Dmanisi finds) ...