The spinal cord runs through its center. Secondary curves are concave posteriorly, opposite in direction to the original fetal curvature. for more anatomy content please follow us and visit our website: www.anatomynote.com. The vertebral column, also known as the backbone or spine, is part of the axial skeleton.The vertebral column is the defining characteristic of a vertebrate in which the notochord (a flexible rod of uniform composition) found in all chordates has been replaced by a segmented series of bone: vertebrae separated by intervertebral discs. The vertebral column is situated in the median line, as the posterior part of the trunk; its average length in the male is about 71 cm. Figure 11. On the posterior surface, running down the midline, is the median sacral crest, a bumpy ridge that is the remnant of the fused spinous processes (median = “midline”; while medial = “toward, but not necessarily at, the midline”). Learn the vertebral column anatomy of the spine or backbone, including the vertebrae or bones of the cervical, thoracic, lumbar, and sacral spine. In total, the intervertebral discs account for approximately 25 percent of your body height between the top of the pelvis and the base of the skull. Cervical Vertebrae. In adults, the lumbar curve is generally deeper in females. Thoracic vertebrae have sites for rib attachment, and the vertebrae that give rise to the sacrum and coccyx have fused together into single bones. in length. The superior and inferior articular processes of the cervical vertebrae are flattened and largely face upward or downward, respectively. These openings allow for the anterior and posterior branches of the sacral spinal nerves to exit the sacrum. This consists of a series of short, paired ligaments, each of which interconnects the lamina regions of adjacent vertebrae. Scoliosis is the most common vertebral abnormality among girls. The superior articular process of the sacrum, one of which is found on either side of the superior opening of the sacral canal, articulates with the inferior articular processes from the L5 vertebra. Participants. In the adult, this fetal curvature is retained in two regions of the vertebral column as the thoracic curve, which involves the thoracic vertebrae, and the sacrococcygeal curve, formed by the sacrum and coccyx. Each area of the spine has some differences in the form and function of vertebral bodies and how they are … Composed of a series of bones called vertebrae (singular is vertebra). The posterior bulging of the nucleus pulposus can cause compression of a spinal nerve at the point where it exits through the intervertebral foramen, with resulting pain and/or muscle weakness in those body regions supplied by that nerve. The vertebral column (spine) defines the animal subphylum Vertebra, or vertebrates, of the phylum Chordata. Choose from 500 different sets of vertebral column anatomy flashcards on Quizlet. They can recommend therapeutic or rehabilitative exercises, and some also include acupuncture, massage therapy, or ultrasound as part of the treatment program. Compensatory curves may also develop in other areas of the vertebral column to help maintain the head positioned over the feet. Click on the tags below to find other quizzes on the same subject. There is a printable worksheet available for download here so you can take the quiz with pen and paper.. This fluid is absorbed during the night as you lie down and is pushed out during the day as you move upright. The vertebral column, also called the spine, spinal column or backbone. Approximately nine of the bones at the terminal end of the spine later fuse in adulthood to … The coccyx is formed by the fusion of four small coccygeal vertebrae. Axis. The axis (C2 vertebra) has the upward projecting dens, which articulates with the anterior arch of the atlas. The major function of the vertebral column is protection of the spinal cord; it also provides stiffening for the body and attachment for the pectoral and pelvic girdles and many muscles. The single spinous process (vertebral spine) projects posteriorly at the midline of the back. However, the sacral and coccygeal fusions do not start until age 20 and are not completed until middle age. A typical vertebra consists of a body and a vertebral arch. These are for articulation with the head (end) of a rib. 28 April - 4 May. When the vertebrae are aligned together in the vertebral column, notches in the margins of the pedicles of adjacent vertebrae together form an intervertebral foramen, the opening through which a spinal nerve exits from the vertebral column (Figure 5). The vertebral column is curved, with two primary curvatures (thoracic and sacrococcygeal curves) and two secondary curvatures (cervical and lumbar curves). Rib Articulation in Thoracic Vertebrae. Chiropractors are health professionals who use nonsurgical techniques to help patients with musculoskeletal system problems that involve the bones, muscles, ligaments, tendons, or nervous system. Anatomy and function of the vertebral column lymphatic network in mice Nat Commun. Figure 2. The vertebral column originally develops as a series of 33 vertebrae, but this number is eventually reduced to 24 vertebrae, plus the sacrum and coccyx. The vertebral column (also known as the backbone or the spine), is a column of approximately 33 small bones, called vertebrae. The vertebral column is part of the axial skeleton. Vertebral column, also called spinal column, spine, or backbone, in vertebrate animals, the flexible column extending from neck to tail, made of a series of bones, the vertebrae. 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