Lower Back

All anatomical structures in the Lower Back region

196 entries

All Types 196 Muscles 32 Bones 25 Tendons 20 Ligaments 39 Nerves 20 Bursae 20 Joints 20 Vessels 20

196 entries

Ligament Anterior Annular Fibres (Lumbar Disc) fibrae anuli fibrosi anteriores (discus intervertebralis lumbalis) Lower Back The lumbar annulus fibrosus consists of 15-20 concentric lamellae of type I collagen with alternating fibre… Ligament Anterior Longitudinal Ligament ligamentum longitudinale anterius Lower Back The anterior longitudinal ligament is a broad, strong band running down the anterior vertebral column from… Ligament Anterior Longitudinal Ligament (Lumbar) ligamentum longitudinale anterius (lumbale) Lower Back The lumbar ALL is a broad, thick band firmly adherent to the anterior vertebral bodies and… Ligament Anterior Longitudinal Ligament (Lumbar) Detail ligamentum longitudinale anterius lumbale detail Lower Back The anterior longitudinal ligament in the lumbar spine is broad and thickest at this level, firmly… Ligament Anterior Sacrococcygeal Ligament ligamentum sacrococcygeum anterius Lower Back The anterior sacrococcygeal ligament connects the anterior surfaces of the sacrum and coccyx, reinforcing the sacrococcygeal… Vessel Anterior Spinal Artery arteria spinalis anterior Lower Back The anterior spinal artery is formed by the union of two small branches from the vertebral… Joint Apophyseal Joints (Facet Joints) articulationes zygapophysiales Lower Back The facet joints (zygapophyseal joints) are paired synovial joints at each vertebral level that guide spinal… Vessel Artery of Adamkiewicz arteria radicularis magna Lower Back The artery of Adamkiewicz (arteria radicularis magna, great anterior radiculomedullary artery) is the largest anterior radicular… Vessel Ascending Lumbar Vein vena lumbalis ascendens Lower Back The ascending lumbar veins are paired paravertebral vessels connecting the common iliac veins below to the… Vessel Basivertebral Vein vena basivertebralis Lower Back The basivertebral veins are large, valveless vessels running through the central cancellous bone of each vertebral… Nerve Cauda Equina cauda equina Lower Back The cauda equina (horse's tail) is the collection of nerve roots below the conus medullaris that… Joint Caudal Epidural Space spatium epidurale caudale Lower Back The caudal epidural space is the inferior extent of the epidural space accessed via the sacral… Bone Coccygeal Segments vertebrae coccygeae Lower Back The coccyx consists of 3-5 fused or partially fused vestigial vertebrae forming the terminal segment of… Bone Coccyx os coccygis Lower Back The coccyx, or tailbone, consists of three to five fused rudimentary vertebrae at the base of… Nerve Conus Medullaris conus medullaris Lower Back The conus medullaris is the tapered terminal end of the spinal cord, normally ending at the… Joint Costovertebral Joint Complex articulatio costovertebralis complexus Lower Back Each rib articulates with the thoracic spine through two distinct synovial joints: the costovertebral joint proper… Tendon Deep Multifidus Laminar Attachment insertio laminaris profunda musculi multifidi Lower Back The deepest fibres of the lumbar multifidus attach via short, stout tendinous bands directly to the… Joint Epidural Space spatium epidurale Lower Back The epidural space (extradural space) is the potential space between the dura mater of the spinal… Vessel Epidural Venous Plexus plexus venosus epiduralis Lower Back The epidural venous plexus occupies the epidural space surrounding the dural sac, formed by the anterior… Muscle Erector Spinae musculus erector spinae Lower Back The erector spinae is not a single muscle but a column of three parallel muscle groups,… Muscle Erector Spinae (Group) musculi erectores spinae Lower Back The erector spinae is the primary extensor muscle mass of the spine, consisting of three longitudinal… Tendon Erector Spinae Aponeurosis aponeurosis musculi erectoris spinae Lower Back The erector spinae aponeurosis is the broad, flat tendinous sheet from which the iliocostalis, longissimus, and… Bursa Erector Spinae Aponeurosis Bursa bursa aponeurosis musculi erectoris spinae Lower Back A bursa between the erector spinae aponeurosis and the posterior iliac crest where the aponeurosis attaches,… Vessel Fifth Lumbar Artery arteria lumbalis quinta Lower Back The fifth lumbar artery arises from the posterior aorta at the L5 level or from the…

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