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Accessory transverse foramen of the atlas is present in 1.4–12.5% across the population. [7] Foramen arcuale or a bony bridge above the vertebral artery on the posterior arch of the atlas may be present. This foramen has an overall prevalence of 9.1%. [8]
The transverse ligament divides the vertebral foramen of the axis into an anterior portion (constituting one third of its lumen) which contains the dens, and a posterior portion (constituting two thirds of the foramen's lumen) which contains the spinal cord and its coverings [1] as well as the two accessory nerves (CN XI). [2]
Blood vessels and nerves can also be affected by the pressure caused by any swelling in the leg. If the pressure becomes great enough, blood flow to the muscle can be blocked, leading to a condition known as compartment syndrome. Severe damage to the nerve and blood vessels around a muscle can cause the muscle to die and amputation might be ...
Nerves frontal-supraorbital foramen: 2: supraorbital artery supraorbital vein: supraorbital nerve: frontal: anterior cranial fossa: foramen cecum: 1: emissary veins to superior sagittal sinus from the upper part of the nose [3] ethmoid: anterior cranial fossa (osama) foramina of cribriform plate ~20-olfactory nerve bundles (I) ethmoid: anterior ...
Specific to the cervical vertebra is the transverse foramen (also known as foramen transversarium). This is an opening on each of the transverse processes which gives passage to the vertebral artery and vein and a sympathetic nerve plexus. On the cervical vertebrae other than the atlas, the anterior and posterior tubercles are on either side of ...
Lower limb. Foot. Cutaneous innervation of the lower limbs is the nerve supply to areas of the skin of the lower limbs (including the feet ) which are supplied by specific cutaneous nerves . Modern texts are in agreement about which areas of the skin are served by which nerves , but there are minor variations in some of the details.
The inferior corporotransverse ligament attaches at the posterolateral aspect of the body of one vertebra, and at the transverse process of the below vertebra. [1] The superior transforaminal ligament attaches along the inferior intervertebral notch (of the pedicle of the upper vertebra of the intervertebral foramen). [1]
Joints of lower limb Joints of pelvic girdle Syndesmoses of pelvic girdle Obturator canal; Pubic symphysis; Sacro-iliac joint. Sacrotuberous ligament; Sacrospinous ligament; Greater sciatic foramen; Lesser sciatic foramen; Joints of free lower limb Tibiofibular syndesmosis. Interosseous membrane of leg; Synovial joints of free lower limb Hip joint