define spinal column
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Medical Definition of Spinal cord Spinal cord: The major column of nerve tissue that is connected to the brain and lies within the vertebral canal and from which the spinal nerves emerge. Thirty-one pairs of spinal nerves originate in the spinal cord: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal. The spinal cord and the brain constitute the central nervous system. The spinal cord consists of nerve fibers that transmit impulses to and from the brain. Like the brain, the spinal cord is covered by three connective-tissue envelopes called the meninges.
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Large Species of Snakes as Pets Large Snake Species. There are more than 2,500 species of snakes, from the tiny thread snake, which grows to less than 4 inches, to the mighty anaconda. Types of large snakes typically sold as pets include ball pythons, boa constrictors and Burmese pythons. If you're considering a large snake as a pet, there are a few things to consider because snake-keeping isn't simple, nor is it for the faint of heart.
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Vertebral column The human vertebral column is the vertebral column (backbone or spine) of the human skeleton, consisting of 24 articulating vertebrae and 9 fused vertebrae in the sacrum and the coccyx. The vertebrae in the column are separated from each other by intervertebral discs.he vertebral column consists of vertebrae. The vertebrae of the cervical, thoraic and lumbar spines are independent bones, and generally quite similar. The vertebrae of the sacrum and coccyx are usually fused and unable to move independently.
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vertebral column It provides a supporting axis for the body and protects the spinal cord. The vertebral column consists of seven cervical vertebrae in the neck, followed by 12 thoracic vertebrae that connect to the ribs, five lumbar vertebrae in the lower back, the sacrum, and the coccyx.
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spinal spinal. 1. pertaining to a spine. 2. pertaining to the vertebral column. spinal cord that part of the central nervous system lodged in the spinal canal, extending from the foramen magnum to the upper part of the lumbar region.It is composed of an inner core of gray substance in which nerve cells predominate and an outer layer of white substance in which myelinated nerve fibers predominate.. pertaining to the vertebral column. spinal cord that part of the central nervous system lodged in the spinal canal, extending from the foramen magnum to the upper part of the lumbar region.
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- Definition of spinal nerve. : any of the paired nerves which leave the spinal cord of a craniate vertebrate, supply muscles of the trunk and limbs, and connect with the nerves of the sympathetic nervous system, which arise by a short motor ventral root and a short sensory dorsal root, and of which there are 31 pairs in humans.
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- 10 most extreme places on Earth. The spine, alternately known as the vertebral column or backbone, is the structure that encloses and protects the spinal cord, which is the bundle of nerves that transmits signals from the brain to the rest of the body. The human spine serves to protect the bundle of nerves known as the spinal cord. 2  The spine is a central and crucial connector within the human skeletal structure.
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Translations for spinal cord Noun. 1. spinal cord-a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain; a long tubelike structure extending from the base of the brain through the vertebral canal to the upper lumbar region. medulla spinalis.
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Spine Basics The spinal cord is a column of millions of nerve fibers that run through your spinal canal. It extends from the brain to the area between the end of your first lumbar vertebra and top of your second lumbar vertebra.
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Spinal cord The spinal cord is the main pathway for information connecting the brain and peripheral nervous system.The human spinal cord is protected by the bony spinal column shown to the left. The spinal column is made up of bones called vertebrae.he spinal cord is the main pathway for information connecting the brain and peripheral nervous system.
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spinal spinal. 1. pertaining to a spine. 2. pertaining to the vertebral column. spinal cord that part of the central nervous system lodged in the spinal canal, extending from the foramen magnum to the upper part of the lumbar region.
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Spine The spine, also known as the vertebral column or spinal column, is a column of 26 bones in an adult body – 24 separate vertebrae interspaced with cartilage, and then additionally the sacrum and coccyx.... Anatomy Explorer.
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Spondylosis Spondylosis (from Ancient Greek σπόνδυλος spóndylos, a vertebra, in plural vertebrae – the backbone) is a broad term meaning degeneration of the spinal column from any cause.
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Vertebra, Vertebrae (Plural) Definition Vertebra, Vertebrae (Plural) Definition. Vertebrae are the 33 individual, interlocking bones that form the spinal column. Each vertebra has three main functional components: the vertebral body for load-bearing, the vertebral arch to protect the spinal cord, and transverse processes for ligament attachment. The spinal column consists of seven cervical, twelve thoracic, and five lumbar vertebrae in addition to five fused vertebrae of the sacral region and four fused vertebrae forming the coccyx. The vertebrae in each region have unique features that help them perform their main functions.
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Bones of the spinal column? What is the bones of the spinal column called? What does spinal column protect? The spinal column, a series of vertebrae composed of bone, protects a part of the nervous system known as the spinal cord. The spinal cord is a bundle of nerves that helps to …carry messages to various parts of the body.
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- There are several different types of vertebrae, classified by their position. Cervical vertebrae form the upper part of the spinal column, with two special cervical vertebrae, the atlas and the axis, connecting the spine to the skull.he rib cage, with the lower thoracic vertebrae visible at the bottom. Vertebrae connect to form the back's spinal cord. The tailbone, or coccyx, is the lowest segment of the spinal column. The individual vertebrae protect and support the spinal cord.
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Spinal cord injury Spinal column injury is trauma that causes fracture of the bone or instability of the ligaments in the spine; this can coexist with or cause injury to the spinal cord, but each injury can occur without the other.
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- vertebral column. (or backbone or spine) The column of vertebrae between the skull and the hip bones, supporting the body and shielding the spinal cord.
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- The vertebral column (also known as the backbone or the spine), is a column of approximately 33 small bones, called vertebrae.
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Spinal Column: An Integral Part of the Human Body The Spinal Column is also called the vertebral column. The bones in the spine are called vertebrae (ver-ta-bray). The column starts at the base of the skull and continues to the pelvis. Alternate layers of bone (vertebrae) and cartilage (car-til-ledge, the intervertebral discs) stack vertically one on top of the other in the spinal column.
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Curvature And Movements Of The Vertebral Column The Spinal Column. The spine (also called the vertebral column or spinal column) is composed of a series of bones called vertebrae stacked one upon another.There are four regions of the spine: 1  cervical (neck). 2  thoracic (chest/trunk). 3  lumbar (low back).he spine (also called the vertebral column or spinal column) is composed of a series of bones called vertebrae stacked one upon another. There are four regions of the spine:
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Spinal cord The spinal cord is a long, thin, tubular bundle of nervous tissue and support cells that extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column. The brain and spinal cord together make up the central nervous system (CNS).n the upper part of the vertebral column, spinal nerves exit directly from the spinal cord, whereas in the lower part of the vertebral column nerves pass further down the column before exiting. The terminal portion of the spinal cord is called the conus medullaris.
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Anatomy of the Human Spine Anatomy of the Human Spine. Overview. The spine is made of 33 individual bones stacked one on top of the other. This spinal column provides the main support for your body, allowing you to stand upright, bend, and twist, while protecting the spinal cord from injury.
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- The Vertebral Column. The vertebral column (also known as the backbone or the spine), is a column of approximately 33 small bones, called vertebrae. The column runs from the cranium to the apex of the coccyx, on the posterior aspect of the body. It contains and protects the spinal cord.
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column see chromatography. dorsal column. the dorsal portion of the gray substance of the spinal cord, in transverse section seen as a horn. gray column. the longitudinally oriented parts of the spinal cord in which the nerve cell bodies are found, comprising the gray matter of the spinal cord.he triangular (in cross-section) sector of white matter demarcated by the dorsal midline (the dorsal median sulcus) and the dorsal horn on each side of the spinal cord. The dorsal column is a large bundle of ipsilateral primary sensory axons. See also: column.
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- The spinal column is comprised of the vertebrae (the bone structures in the neck and back), the intervertebral discs and various ligaments and muscles. The vertebrae are responsible for lending the neck and back structure and serve as shields for the spinal cord.