Find out what you need to know about the ulnar nerve, including its anatomy, and discover how it may affect health.

Reprinted with permission. The most complex nerve plexus is the brachial plexus, consisting of cervical nerves 5 through 8 (C5 to C8) and thoracic nerve 1 (T1).

Schwannoma: (Top Left) T2-weighted axial MRI; (Top Right) T1-weighted with gadolinium axial MRI; (Bottom Left) T1-weighted coronal MRI; (Bottom Right) T1-weighted with gadolinium coronal MRI. Note the ...

They used an intraoperative neuromonitoring probe to ensure safe dissection of the tumor from the T1 nerve root. The patient maintained full hand strength postoperatively. (2) For that operation, only ...

There are seven cervical vertebrae but eight cervical nerve roots. The C8 nerve root exits the spine just above the T1 vertebral body.

In this case, the affected nerve pathways involve your face and eye, causing symptoms like a drooping eyelid. Although both conditions are rare, Horner syndrome is a common feature of Pancoast tumors.

Researchers found that nerve protein levels in the blood were higher when MRI detected new T1 and T2 lesions, which are areas of damage in the brain due to MS.

Schwannoma: MRI Scans of the Lumbar Spine; (Left Top) T1-weighted axial; (Left Middle) T1-weighted with gadolinium axial; (Left Lower) T2-weighted axial; (Middle) T2-weighted mid-sagittal; (Right) ...