Is there a C8 in the cervical spine?
There are 8 pairs of spinal nerves in the cervical spine, labeled C1 to C8. Each one is named after the vertebra beneath it, except the C8 nerves, which are above the T1 vertebra.
Is there a C8 nerve root?
The C8 nerve root is atypical because it does not have a corresponding vertebral element and exits below the C7 pedicle and occupies the intervertebral foramen between C7 and T1. In the thoracic and lumbar spine, the nerve roots exit the spinal canal by passing below the pedicle of their named vertebra.
Where is C8 and T1 located?
C8 and T1 supply the medial antebrachial cutaneous nerve via the medial cord of the brachial plexus, arising between the neck and proximal upper extremity (Fig. 2).
Where does the C8 spinal nerve exit the spinal cord?
This disc protects the vertebrae by providing cushioning and shock-absorbing functions during neck movements. C8 spinal nerve. The C8 spinal nerve exits the spinal cord in between the C7 and T1 vertebrae through a small bony opening called the intervertebral foramen. This nerve has a sensory root and a motor root.
Why is the C8 nerve compressed at the foramen?
C7-T1 foraminal stenosis. The C8 nerve can become compressed at the foramen—a bony hole where the nerve root branches off from the spinal cord and exits the spinal canal—if the foramen narrows enough due to bone overgrowth.
What happens if you have a C8 spinal cord injury?
A C8 spinal cord injury refers to damage at the nerve roots between the C7 and T1 vertebrae. While individuals with C8 spinal cord injuries generally can control movement in their arms, they may experience weakness and loss of sensation in the hands, trunk, and lower body.
Where is the C7 vertebra in the cervical spine?
The C7 vertebra sits directly below the C6 spinal vertebra and is part of the lower levels of the cervical spine, near the base of the neck. It is the last vertebral level in the cervical spine column, which includes levels C1 – C7.