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There are usually 21 denticulate ligaments on each side, with the uppermost pair occurring just below the foramen magnum, and the lowest pair occurring between spinal nerve roots of T12 and L1. [1] The denticulate ligaments are traditionally believed to provide stability for the spinal cord against motion within the vertebral column. [citation ...
The spinal pia mater closely follows and encloses the curves of the spinal cord, and is attached to it through a connection to the anterior fissure. The pia mater attaches to the dura mater through 21 pairs of denticulate ligaments that pass through the arachnoid mater and dura mater of the spinal cord.
Sectional organization of spinal cord. The spinal cord is the main pathway for information connecting the brain and peripheral nervous system. [3] [4] Much shorter than its protecting spinal column, the human spinal cord originates in the brainstem, passes through the foramen magnum, and continues through to the conus medullaris near the second lumbar vertebra before terminating in a fibrous ...
On axial imaging of MRI at the level of the denticulate ligaments, the inverted Mercedes-Benz sign denotes the form taken on by a spinal subdural hematoma. To identify the hematoma in the spinal cord, MRI with and without gadolinium enhancement is the preferred choice. [9]
The filum terminale is situated centrally [2] amid the spinal nerve roots of the cauda equina [3] [2] (but is not itself a part of the cauda equina [2]).. The inferior-most spinal nerve, the coccygeal nerve, leaves the spinal cord at the level of the conus medullaris via respective vertebrae through their intervertebral foramina, superior to the filum terminale.
It is the space within the thecal sac which extends from below the end of the spinal cord (the conus medularis), typically at the level of the first to second lumbar vertebrae down to tapering of the dura at the level of the second sacral vertebra. The dura is pierced with a needle during a lumbar puncture (spinal tap).
Granger N, Olby NJ, Nout-Lomas YS; Canine Spinal Cord Injury Consortium (CANSORT-SCI). Bladder and Bowel Management in Dogs With Spinal Cord Injury. Front Vet Sci. 2020 Nov 11;7:583342. doi: 10. ...
The spinal epidural space spans the length of the spinal cord, from the foramen magnum superiorly to the sacral hiatus inferiorly. [ 6 ] Epidural space is the smallest at the cervical region, measuring 1 to 2 mm.