What is anterior to the spinal cord?
What is anterior to the spinal cord?
The anterior portion of the spinal cord is supplied by the anterior spinal artery. It begins at the foramen magnum where branches of the two vertebral arteries exit, merge, and descend along the anterior spinal cord.
What is the anterior root of spinal nerve?
ventral root: Also called the anterior root, it is the efferent motor root of a spinal nerve. autonomic: Acting or occurring involuntarily, without conscious control. dorsal root: Also known as the posterior root, the afferent sensory root of a spinal nerve.
What structure is anterior to the spine?
Structure of the Intervertebral Disc: The anterior joint between the bodies of the vertebra is called the Intervertebral Disc. The Intervertebral Disc is designed for weightbearing and provides strength for the spine.
Where is the anterior cord located?
Advanced Imaging of the Spine The anterior spinal artery is located in the midline. In the cervical and upper thoracic cord, contributions to the anterior spinal artery are from the vertebral, cervical, and superior intercostal arteries.
What causes anterior spinal cord syndrome?
This syndrome is caused by compression of the anterior spinal artery, which results in anterior cord ischemia or direct compression of the anterior cord. It is associated with burst fractures of the spinal column with fragment retropulsion caused by axial compression.
Can you recover from anterior cord syndrome?
Many patients with CCS make a spontaneous recovery of motor function, while others experience considerable recovery in the first six weeks after injury. If the underlying cause is edema or swelling in the spinal cord, recovery may occur relatively soon after an initial period of weakness.
Where is the anterior root of spinal nerve?
Nervous System The dorsal (posterior) or sensory root bears a dorsal root ganglion (DRG) containing the cell bodies of the sensory neurons. The ventral (anterior) or motor root consists of axons from the lower motor neurons in the ventral horn of the spinal cord.
What are the 31 spinal nerves?
Spinal nerve, in vertebrates, any one of many paired peripheral nerves that arise from the spinal cord. In humans there are 31 pairs: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal. Each pair connects the spinal cord with a specific region of the body.
Is the heart anterior to the spine?
The dorsal surface of the heart lies near the bodies of the vertebrae, and its anterior surface sits deep to the sternum and costal cartilages.
How is anterior cord syndrome diagnosed?
MRI is the primary imaging modality in the diagnosis of anterior cord syndrome. T2 hyperintensities within the region of the anterior horns are the hallmark finding. These hyperintensities on the sagittal view appear as thin “pencil-like” lesions extending vertically across several spinal levels.
What causes anterior cord syndrome?
Anterior cord syndrome is caused by ischemia within the anterior spinal artery (ASA), which supplies blood to the anterior 2/3of the spinal cord. The ASA forms from the bilateral vertebral arteries at the foramen magnum.
What are the 12 cranial nerve?
The 12 Cranial Nerves
- I. Olfactory nerve.
- II. Optic nerve.
- III. Oculomotor nerve.
- IV. Trochlear nerve.
- V. Trigeminal nerve.
- VI. Abducens nerve.
- VII. Facial nerve.
- VIII. Vestibulocochlear nerve.
What plane divides the body into front and back?
Coronal Plane (Frontal Plane) – A vertical plane running from side to side; divides the body or any of its parts into anterior and posterior portions. Sagittal Plane (Lateral Plane) – A vertical plane running from front to back; divides the body or any of its parts into right and left sides.