Denticulate ligaments pia mater

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Embark on a fascinating journey through the intricate neural pathways responsible for transmitting touch, proprioception, and vibration sensations from the limbs to the brain. Perfect for students, medical enthusiasts, and anyone curious about the marvels of the somatosensory system! • Keywords: • Denticulate Ligaments • Pia Mater • Somatosensory System • Neuroanatomy • Sensory Pathways • Ascending Tracts • Touch and Vibration • Proprioception • Nerve Fibers • Medulla • Spinal Cord • Brainstem • Thalamus • Primary Somatosensory Cortex • Neurological Wonders • Related Video Content: • Understanding the Dorsal Column-Medial Lemniscus Pathway • The Role of the Gracilis and Cuneatus Nuclei in Sensory Processing • Sensory Decussation: How the Brain Processes Sensory Information • The Anatomy of the Somatosensory System • Neuroanatomy of the Dorsal Column • The Function of the Medial Lemniscus • The Somatosensory Cortex: A Guide • The Role of the Thalamus in Sensory Processing • The Dorsal Column-Medial Lemniscus Pathway: A Quick Review • The Anatomy of the Spinal Cord • Hashtags: • #DenticulateLigaments • #PiaMater • #SomatosensorySystem • #Neuroanatomy • #SensoryPathways • #AscendingTracts • #TouchandVibration • #Proprioception • #NerveFibers • #Medulla • Top 10 YouTube Videos: • Denticulate Ligaments Pia Mater Explained by Easy Human Anatomy • Understanding the Dorsal Column-Medial Lemniscus Pathway by Crash Course Anatomy • The Role of the Gracilis and Cuneatus Nuclei in Sensory Processing by Visible Body • Sensory Decussation: How the Brain Processes Sensory Information by Khan Academy • The Anatomy of the Somatosensory System by Science Channel • Neuroanatomy of the Dorsal Column by Bozeman Science • The Function of the Medial Lemniscus by Professor Fink • The Somatosensory Cortex: A Guide by Amoeba Sisters • The Role of the Thalamus in Sensory Processing by Ninja Nerd Science • The Dorsal Column-Medial Lemniscus Pathway: A Quick Review by Kenhub • #LigamentumDenticulatum #SpinalAnatomy #MedicalEducation #AnatomyExplained #ScienceVideos • Ligamentum denticulatum • • The denticulate ligaments are triangular shaped ligaments that anchor the spinal cord along its length • • They are situated at each side of spinal cord . The pia mater, a vascular membrane that closely covers the spinal cord is thickened on either side between the nerve roots to form the ligamentum denticulatum . The bases of the ligaments arise in the pia mater they are firmly attached to the arachnoid mater dura mater at the apex. Denticulate ligament crosses the subarachnoid space between the anterior posterior nerve roots piercing the arachnoid mater, connect the side of the spinal cord to the dura mater . It is attached in an unbroken line along the spinal cord from the foramen magnum to the conus medullaris . The lateral edge of denticulate ligament has a series of teeth like projections which are attached to the dura mater between the successive nerve roots. Number : There are usually 21 pairs evenly spaced along the length of the spinal cord but their number can range from 18 to 24 pairs. The triangular extensions are smaller and more numerous at the cervical levels, and are larger and less numerous at the thoracic levels. The apices of the extensions attach to the dura via fibrous bands at cervical levels (each band 3–5 mm long) lower thoracic levels (21–26 mm long), whereas they attach directly to the dura at upper thoracic levels. The highest denticulate ligament is attached to the dura mater just above the foramen magnum behind the vertebral artery in front of the spinal root of accessory nerve. The lowest denticulate ligament lies between the 12th thoracic 1st lumbar nerve roots , is a narrow , oblique band that descends laterally from conus medullaris. • • Stability of spinal cord is served by the denticulate ligaments, Changes in the form position of denticulate ligaments during spinal movements have been demonstrated by cine radiography (the process of making radiographs of moving objects in sufficiently rapid sequence so that the radiographs or copies made from them may be projected as motion pictures) • • Clinical anatomy: Denticulate ligaments are characterized by high extensibility (on average 50% of their initial length) and relatively low force necessary to rupture them. The average ultimate force that broke the denticulate ligaments was 0.88N. Stress-strain characteristics of the denticulate ligaments are different at different vertebral levels . Their strength are more especially in cervical region, decreases in caudal orientation. Significant differences exist between the C1 and C7. Force that broke the denticulate ligament C1 (1.04±0.41N) but C7 (0.55±0.12N) vertebral levels (P=0.037). • •

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