Vertebral artery
vertebral artery n.
The first branch of the subclavian artery, divided into four parts: the prevertebral part, before it enters the foramen of the transverse process of the sixth cervical vertebra; the transverse part, in the transverse foramina of the first six cervical vertebrae; the atlas, running along the posterior arch of the atlas; and the intracranial part, within the cranial cavity to union with the artery from the other side to form the basilar artery.
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noun 1. spinal canal. vertebral canal n. The canal that contains the spinal cord, spinal meninges, and related structures and is formed by the vertebral foramina of successive vertebrae of the articulated spinal column. Also called spinal canal.
- Vertebral-column
noun 1. spinal column. vertebral column noun 1. another name for spinal column vertebral column n. See spinal column. vertebral column (vûr’tə-brəl) The series of vertebrae extending from the base of the skull to the tip of the tail that forms the supporting axis of the body in vertebrate animals. In humans and tailless apes, […]
- Vertebral foramen
vertebral foramen n. The opening formed by the union of the vertebral arch with its body.
- Vertebral formula
vertebral formula n. A formula indicating the number of vertebrae in each segment of the spinal column.
- Vertebral nerve
vertebral nerve n. A nerve that arises from the cervicothoracic ganglion, ascends along the vertebral artery to the level of the axis or atlas, and gives branches to the cervical nerves and meninges.