Respuesta :
Transverse foramina are found in cervical vertebrae.
The foramen transversarium of the cervical vertebra is an opening occupied by the vertebral artery and vein in the first six vertebrae and only the vertebral vein in the seventh vertebra. The vertebral artery is of particular importance because it serves the brain and spinal cord.
The transverse foramina is found only in the cervical vertebrae. These foramina allow passage through the vertebral artery and vein. The vertebral arteries arise from the first part of the subclavian artery. The vertebral veins do not serve the brain much, but receive blood from the cervical spinal cord, cervical vertebrae, and some small muscles in the upper neck.
The foramen is formed by the union of the transverse process in the back and the rest of the cervical rib anteriorly. These foramina do not occur in other regions of the spine. The transverse foramina is found only in the cervical vertebrae.
These foramina allow passage through the vertebral artery and vein. The vertebral arteries arise from the first part of the subclavian artery. The vertebral and internal carotid arteries supply arteries to the brain, forming the circle of Willis at the base of the brain.
Once the vertebral artery emerges from the subclavian artery, it passes through the transverse socket of the cervical vertebrae from C1 to C6. Then it enters the skull through the foramen magnum.
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