The spine is often referred to as the “backbone” of our lives, and its main role is to connect the head and limbs, support the torso, and protect important nerve tissue and organ structures. With the change of modern people’s lifestyle, the use of the spine far exceeds the load it should bear, therefore, modern people’s spine disease shows a high trend. This trend is becoming more and more serious. How to recognize your spine, protect your spine, and make your life and work more enjoyable has gradually become an issue of great concern to everyone. From now on, “Love Spine” Forum Prof. Liang Wei will carry out a series of scientific knowledge lectures in light of your concerns. We welcome your attention! Spine and Muscles The spine provides stability and support to the body. Don’t just know the erector spinae, reason: 1, any movement at least two groups of muscles involved, namely the active muscles (to complete the movement) and antagonistic muscles (to prevent excessive movement) 2, since it is the beam of the human body, the erector spinae is only one of the links, and its corresponding muscle groups are the abdominal wall muscles (abdominal obliquity, abdominal obliquity, transversus abdominis, rectus abdominis) 3, the abdominal wall muscles are concerned about: the abdominal obliquity and the transversus abdominis, because the 2 muscles are all involved in the thoracolumbar fascia. Both muscles start from the thoracolumbar fascia, and the erector spinae muscles are also encompassed by the thoracolumbar fascia, forming the erector spinae sheath. Therefore, the thoracolumbar fascia has an inseparable relationship with the erector spinae, internal obliques and transversus abdominis. 4, the thoracolumbar fascia for the human trunk of the forward bending (bending) and some of its related labor plays a very important role, this role is conducive to the restoration of the spine in an upright position. Because its position is located in the rear of the body near the center of the position, so for the trunk and lower limbs between the load can play a role in the beginning and end. Functions of the spine 1. The stability of the spine is made clear by thinking in terms of the stability of the joints. That is: the greater the mobility, the worse the stability, and vice versa. Therefore, neck curvature and lumbar curvature have high mobility and poor stability. 2, the ligaments of the spine and small joint capsules (such as the upper and lower articular synovial joints) should be used as an important learning direction, because they play a great role in maintaining the stability of the spine. 3. The weight bearing of the spine should be considered from its position. That is: to bear the full weight of the head and trunk. 4. The movement of the spine and the trunk should be considered from the connecting structure. That is: the core bony structure that makes the head, trunk and lower limbs move. 5, The spine and the spinal cord and its surrounding nerves. I.e.: this is a protective function, through the “rigid” tube (spinal canal) structure to protect the soft tissue (spinal cord) structure of the typical representative of intervertebral disc herniation 1, the neck is common in the 5th-6th and 6th-7th; lumbar is common in the 4th-5th; due to the small weight bearing in the thorax, the mobility is small, therefore, the prolapse is less common. 2, the rupture of the fiber ring leads to the prolapse of the nucleus pulposus, the reason for rupture: acute injury or chronic strain degeneration. 3. The site of prolapse is usually at the lateral aspect of the posterior longitudinal ligament. Since the posterior part of the disc is adjacent to the intervertebral foramen (the place where spinal nerves enter and exit), the prolapsed nucleus pulposus often compresses 1-2 spinal nerves and triggers symptoms. 4. In rare cases, the disc may prolapse from the posterior aspect of the intervertebral disc. Due to the obstruction of the posterior longitudinal ligament, the nucleus pulposus can be divided into two, which can cause double compression of the spinal cord or spinal nerves. If the nucleus pulposus is dislodged, it will cause it to wander in the spinal canal, resulting in distant compression at the site of prolapse. 5. The torn annulus fibrosus and material released from the nucleus pulposus may also irritate the spinal nerves. 6. The severity of symptoms is positively correlated with the location and severity of the prolapse. Sensory abnormalities usually precede motor abnormalities. Spinal injuries 1. Injuries to the ligaments, muscles, and small joint capsules that provide movement, connection, protection, and support to the spine can occur alone or in combination. (These injuries are not always easy to diagnose on imaging.) 2. Infections, which can lead to pathologic changes in the spine, can affect motor function and can also affect the protection of the spinal cord. 3, about the spine of the “3 columns” concept, should be understood. Gravity line The balance of the human body, the spinal column can not be ignored, if when you stand straight, measure their own gravity line, he is the existence of an invisible line in your body. External auditory canal → 2nd cervical vertebrae dentition → 2nd thoracic vertebrae anterior → 12th thoracic vertebrae center → 5th lumbar vertebrae posterior.