Denticulate ligament
Ligamentum denticulatum
Definition
Denticulate ligaments are the triangular-shaped extensions of the spinal pia mater, extending sideways from the spinal cord. In total, there are 21 pairs of these ligaments running the length of the spinal cord, from the foramen magnum to the L1 vertebral level. Each pair of denticulate ligament extends laterally from between the dorsal and ventral spinal nerve roots, pierces through the arachnoid membrane, and securely attaches to the thick spinal dura mater. The denticulate ligaments serve as the horizontal anchors to provide support and stability to the spinal cord.
References
__________________________________________________________________
Text written by Muhammad A. Javaid, MD, PhD © 2022 IMAIOS.
Snell, R.S. (2010). ‘Chapter 15: The Meninges of the Brain and Spinal Cord’, in Clinical Neuroanatomy. (7th ed.) Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins, pp.437.
Sehgal, I. and M Das, J. Anatomy, Back, Spinal Meninges. [Updated 2022 Jun 11]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK547755/
Mioni, J., Piran, P. (2020). ‘Chapter 4: Meninges and Ventricles’, in Functional and Clinical Neuroanatomy, A Guide for Healthcare Professionals. Academic Press, pp. 95-129. https://doi.org/10.1016/B978-0-12-817424-1.00004-5
