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The number of vertebrae in a region can vary but overall the number remains the same. In a human spinal column, there are normally 33 vertebrae. [3] The upper 24 pre-sacral vertebrae are articulating and separated from each other by intervertebral discs, and the lower nine are fused in adults, five in the sacrum and four in the coccyx, or tailbone.
Sectional organization of spinal cord. The spinal cord is the main pathway for information connecting the brain and peripheral nervous system. [3] [4] Much shorter than its protecting spinal column, the human spinal cord originates in the brainstem, passes through the foramen magnum, and continues through to the conus medullaris near the second lumbar vertebra before terminating in a fibrous ...
A typical vertebra has a body (vertebral body), also known as the centrum, which consists of a large anterior middle portion, and a posterior vertebral arch, [2] also called a neural arch. [3] The body is composed of cancellous bone , which is the spongy type of osseous tissue , whose microanatomy has been specifically studied within the ...
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The fifth lumbar vertebra is characterized by its body being much deeper in front than behind, which accords with the prominence of the sacrovertebral articulation; by the smaller size of its spinous process; by the wide interval between the inferior articular processes, and by the thickness of its transverse processes, which spring from the ...
The sacrals, or sacral vertebrae, of the vertebral column are located between the dorsal and caudal vertebrae. They are frequently fused together into a structure known as the sacrum (plural: sacra). [1]: 143 Sometimes one or more dorsal vertebrae are fused to the sacrum into a structure termed a synsacrum. [48]: 368
increased font size: 18:22, 25 September 2007: 436 × 842 (775 KB) LadyofHats: aded the scrotum and the coccyx to the spinal column: 13:48, 25 September 2007: 399 × 771 (777 KB) LadyofHats: modified skull so that it corresponds to the back view, made rib cage wider, and fixed labels
This is a list of human anatomy mnemonics, categorized and alphabetized.For mnemonics in other medical specialties, see this list of medical mnemonics.Mnemonics serve as a systematic method for remembrance of functionally or systemically related items within regions of larger fields of study, such as those found in the study of specific areas of human anatomy, such as the bones in the hand ...