Cauda Equina Anatomy

The spinal column is made of individual bones called vertebrae. They run in the subarachnoid space before exiting at their appropriate vertebral level.

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Distal to this end of the spinal cord is a collection of nerve.

Cauda equina anatomy. Cauda equina anatomy it comprises of the second through fifth lumbar nerve pairs the first through fifth sacral nerve pairs and the coccygeal nerve. The latin words cauda equina mean horses tail which is what early anatomists thought this nerve bundle looked like. Generally it starts at the level of l1l2 disc space distal towards the conus medullaris.

Cauda equina is the package of nerves comprised of the lumbar sacral as well as coccygeal nerve roots coming from l2 to s5 creates cauda like a horse tail. The cauda equina from latin horses tail is a bundle of spinal nerves and spinal nerve rootlets consisting of the second through fifth lumbar nerve pairs the first through fifth sacral nerve pairs and the coccygeal nerve all of which arise from the lumbar enlargement and the conus medullaris of the spinal cord. Cauda equina syndrome is a condition caused by damage to the bundle of peripheral nerves protruding from the bottom of the spinal cord called the cauda equina.

Its name comes from the latin for horses tail. The primary function of the cauda equina is to send and receive messages between the lower limbs and the pelvic organs which consist of the bladder the rectum and the internal genital organs. The cauda equina ce is a bundle of intradural nerve roots at the end of the spinal cord in the subarachnoid space distal to the conus medullaris.

The cauda equina is the collective term given to nerve roots distal to the conus medullaris which occupy the lumbar cistern. They run in the subarachnoid space before exiting at their appropriate vertebral level. Dr craig hacking and dr henry knipe et al.

Under normal circumstances the spinal cord ceases to grow in infants. Cauda is latin for tail and equina is latin for horse ie the horses tail. The cauda equina is a bundle of spinal nerves that arise from the distal end of the spinal cord.

The most distal bulbous part of the spinal cord is called the conus medullaris and its tapering end continues as the filum terminale. When these nerve roots become highly compressed cauda equina syndrome may be diagnosed.

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