Spine
Spine (Vertebral Column)[edit | edit source]
The spine, commonly referred to as the vertebral column or backbone, is a vital part of the skeletal structure in humans and other vertebrates. Its primary function is to provide structural support, balance, and protection to the spinal cord, which is an elongated bundle of nerve tissue that extends from the brain and runs down the entire length of the back within this column. The spine serves as the central pillar of the human body, facilitating posture and movement. Beyond its mechanical roles, it also encases and shields the spinal cord, which is pivotal for transmitting neural signals between the brain and the rest of the body.
Components of the Spine[edit | edit source]
- Vertebra: The spine comprises individual vertebrae, which are the bony segments that stack on top of each other to form the vertebral column. These are categorized based on their location as cervical, thoracic, lumbar, sacral, and coccygeal vertebrae.
- Intervertebral discs: These are fibrocartilaginous cushions situated between the vertebrae. They act as shock absorbers and allow for spinal flexibility.
- Spinal nerves: Emanating from the spinal cord, these nerves facilitate communication between the brain and various parts of the body.
- Structural Attachments: The spine is supported and held together by numerous ligaments, muscles, and connective tissues, which provide stability and facilitate movement.
Functions of the Spine[edit | edit source]
- Protection: The primary function of the vertebral column is to safeguard the spinal cord, which is essential for nerve communication.
- Structural Support: Acting as the body's central axis, it provides support to the head and torso, allowing for posture and balance.
- Facilitation of Movement: The spine, with its intricate design and flexibility, enables a wide range of motions, including bending, twisting, and stretching.
- Hematopoiesis: The vertebral bone marrow is a significant site for blood cell production.
Clinical Relevance[edit | edit source]
Various diseases and conditions can affect the spine, ranging from degenerative disorders to traumatic injuries. Interventions, such as Spinal fusion, may be necessary to treat certain spinal conditions or injuries.
See Also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD
