What is the end of the spinal cord called?

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The spinal cord is an extension of the central nervous system (CNS), which consists of the brain and spinal cord. The spinal cord begins at the bottom of the brain stem (at the area called the medulla oblongata) and ends in the lower back, as it tapers to form a cone called the conus medullaris.

The filum terminale (“terminal thread”) is a delicate strand of fibrous tissue, about 20 cm in length, proceeding downward from the apex of the conus medullaris. It is one of the modifications of pia mater.

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D’autre part, What is the difference between the cauda equina and the filum terminale?

The fibrous extension of the cord, the filum terminale, is a nonneural element that extends down to the coccyx. 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.

De plus, What is the main function of the filum terminale?

The filum terminale (FT) is a fibrous band that extends from the conus medullaris to the periosteum of the coccyx, and its functions are to fixate, stabilize, and buffer the distal spinal cord from normal and abnormal cephalic and caudal traction.

Ensuite, What is the difference between cauda equina syndrome and Conus Medullaris syndrome?

The symptoms and signs of cauda equina syndrome tend to be mostly lower motor neuron (LMN) in nature, while those of conus medullaris syndrome are a combination of LMN and upper motor neuron (UMN) effects (see Table 1, below).

What is the difference between cauda equina and filum terminale?

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The fibrous extension of the cord, the filum terminale, is a nonneural element that extends down to the coccyx. 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.


27 Questions en relation trouvés

 

What is a Filum terminale?

The filum terminale is a small thin filament of connective tissue that extends inferiorly from the apex of the conus medullaris to the sacrum.

What is the difference between Conus medullaris and cauda equina?

The most distal bulbous part of the spinal cord is called the conus medullaris, and its tapering end continues as the filum terminale. Distal to this end of the spinal cord is a collection of nerve roots, which are horsetail-like in appearance and hence called the cauda equina (Latin for horse’s tail).

What is Conus Medullaris syndrome?

Conus medullaris syndrome is a collection of signs and symptoms associated with injury to the conus medullaris. It typically causes back pain and bowel and bladder dysfunction, spastic or flaccid weakness depending on the level of the lesion, and bilateral sensory loss .

Is the cauda equina part of the spinal cord?

At the base of the spinal column, near the first lumbar vertebra, is a collection of nerves called the cauda equina. They are called this because they resemble a horse’s tail. Just above the cauda equina, the spinal cord ends and it continues on as this collection of spinal nerves through the vertebral canal.

What is the Filum terminale quizlet?

filum terminale. a strand of fibrous tissue, originating at the conus medullaris and extending through the vertebral canal to the second sacral vertebra, ultimately becoming part of the coccygeal ligament.

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Where is the Filum terminale located?

The filum terminale (“terminal thread”) is a delicate strand of fibrous tissue, about 20 cm in length, proceeding downward from the apex of the conus medullaris. It is one of the modifications of pia mater.

What is a fatty filum terminale?

Fatty filum terminale, also known as lipoma of the filum terminale or filar lipoma, is a relatively common finding on imaging of the lumbar spine, and in most cases is an incidental finding of no clinical concern. In such cases, it is usually associated with a thickened filum and a low-lying conus.

Where is the Filum terminale found?

It gives longitudinal support to the spinal cord and consists of two parts: The upper part, or filum terminale internum, is about 15 cm long and reaches as far as the lower border of the second sacral vertebra. It is continuous above with the pia mater and contained within a tubular sheath of the dura mater.

What is the Conus Medullaris?

The conus medullaris is the terminal end of the spinal cord, which typically occurs at the L1 vertebral level in the average adult. [1] Conus medullaris syndrome (CMS) results when there is compressive damage to the spinal cord from T12-L2.

What does the Filum terminale do?

The filum terminale is an extension of the pia mater that is attached to the coccygeal segments, whose function is to suspend the cord in the CSF (like the denticulate ligaments).

Where is the cauda equina located?

At the base of the spinal column, near the first lumbar vertebra, is a collection of nerves called the cauda equina. They are called this because they resemble a horse’s tail. Just above the cauda equina, the spinal cord ends and it continues on as this collection of spinal nerves through the vertebral canal.

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Which spinal nerves affect which parts of the body?

The nerves of the cervical spine go to the upper chest and arms. The nerves in your thoracic spine go to your chest and abdomen. The nerves of the lumbar spine then reach to your legs, bowel, and bladder. These nerves coordinate and control all the body’s organs and parts, and let you control your muscles.


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