conus medullaris

The upper end of the conus medullaris is usually not well defined.

The conus medullaris is situated below the L2 level in more than 75% of these diastematomyelia patients.

The terminal portion of the spinal cord is called the conus medullaris.

This is seen through both sets of veins combining to form a network of anastomoses around the conus medullaris.

Conus medullaris syndrome results from injury to the tip of the spinal cord, located at L1 vertebra.

Based on their research, fenestrations were found at the thoracic-lumbar junction, the conus medullaris, and nerve root levels.

It extends from the conus medullaris (L1-L2) to about the level of the second sacral vertebra.

The conus medullaris (latin for "medullary cone") is the tapered, lower end of the spinal cord.

Gombault-Philippe triangle: a triangular field formed in the conus medullaris by the fibers of the septomarginal tract.

Furthermore, the central canal of the spinal cord extends 5 to 6 cm beyond the conus medullaris, downward into the filum terminale.

The tension that the filum terminale provides between the conus medullaris and the coccyx stabilizes the entire spinal cord.

The most frequent injuries of the thoracolumbar region are to the conus medullaris and the cauda equina, particularly between T12 and L2.

Conus medullaris syndrome is a collection of signs and symptoms associated with injury to the conus medullaris.

This test modality is used in intraoperative neurophysiology monitoring to verify function of sensory and motor sacral roots as well as the conus medullaris.

The most inferior of the spinal nerves, the coccygeal nerve leaves the spinal cord at the level of the conus medullaris, superior to the filum terminale.

The central canal expands as a fusiform terminal ventricle, and approximately 8-10 mm in length in the conus medullaris (or conus terminalis).

Absence of this reflex in instances where spinal shock is not suspected could indicate a lesion or injury of the conus medullaris or sacral nerve roots.

The cauda equina ("horse's tail") is the name for the collection of nerves in the vertebral column that continue to travel through the vertebral column below the conus medullaris.

It commences about the level of T11, and reaches its maximum circumference, of about 33 mm., at L1 (lumbar vertebra), below which it tapers rapidly into the conus medullaris.

The pia mater that surrounds the spinal cord, however, projects directly downward, forming a slender filament called the filum terminale, which connects the conus medullaris to the back of the coccyx.

The human spinal cord extends from the foramen magnum and continues through to the conus medullaris near the second lumbar vertebra, terminating in a fibrous extension known as the filum terminale.

After the conus medullaris, the canal contains a mass of nerves (the cauda equina or "horse-tail") that branches off the lower end of the spinal cord and contains the nerve roots from L1-5 and S1-5.

For example, lumbar and sacral spinal cord segments are found between vertebral levels T9 and L2, and the spinal cord ends around the L1/L2 vertebral level, forming a structure known as the conus medullaris.

The myxopapillary ependymoma arises almost exclusively in the location of the conus medullaris, cauda equina, and filum terminale of the spinal cord, and is characterized histologically by tumor cells arranged in a papillary manner around vascularized myxoid stromal cores.

At the point where the pia mater reaches the conus medullaris or medullary cone at the end of the spinal cord, the membrane extends as a thin filament called the filum terminale or terminal filum, contained within the lumbar cistern.