The difference between spine and vertebra

The spine is also called the vertebra. It plays an important role in supporting our human body. It can be said to be a very important structure. Some people often experience spinal pain. This phenomenon cannot be ignored. If it is not relieved after careful cultivation, you must go to the hospital for treatment in time, otherwise it is likely to cause spondylitis. So what is the difference between the spine and the vertebra?

The spine is a bony structure that is an important structure supporting the human body. The spine is also called the spinal column or backbone. It is composed of specially shaped vertebrae and intervertebral discs. It is located in the middle of the back, connected to the skull at the top, the ribs in the middle, and the lower end and hip bones form the pelvis. From top to bottom, there are 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, 1 sacrum (composed of 5 sacral vertebrae) and 1 coccyx (composed of 4 coccygeal vertebrae), totaling 24 independent vertebrae (in adults). A longitudinal spinal canal is formed inside the spine from top to bottom, which contains the spinal cord.

The spinal cord is part of the central nervous system. It is located in the vertebral canal formed by the vertebrae. It is long and cylindrical, with a total length of 41-45 cm. The upper end is connected to the medulla oblongata in the skull, and the lower end is cone-shaped, ending at the lower edge of the first lumbar vertebra (at the level of the third lumbar vertebra in newborns). Many paired nerves (called spinal nerves) extend from both sides of the spinal cord and are distributed to the skin, muscles, and internal organs throughout the body. The spinal cord is the pathway between the peripheral nerves and the brain. It is also the low-level center for many simple reflex activities.

The spinal cord is part of the central nervous system. Many paired nerves (called spinal nerves) extend from both sides of the spinal cord and are distributed to the skin, muscles, and internal organs throughout the body. The spinal cord is the pathway between the peripheral nerves and the brain. It is also the low-level center for many simple reflex activities. When the spine is injured, the entire spinal cord is often damaged. Severe spinal cord injury can cause paralysis of the lower limbs, incontinence, etc.

The spinal cord is located in the vertebral canal. It is cylindrical in shape, slightly tilted front to back, and covered with a membrane that follows the curvature of the spine. The upper end of the spinal cord is connected to the medulla oblongata at the level of the foramen magnum, and the lower end is at the level of the lower edge of the first lumbar vertebra. It is about 40 to 45 cm long. The spinal cord tapers at the end, called the spinal column. It extends downward from the spinal cord column into a slender filum terminale, which is a thin plexus without neural tissue. At the level of the second sacral vertebra, it is wrapped by the dura mater and ends at the back of the coccyx.