The spine, also known as spine and vertebra, is composed of vertebrae and intervertebral discs with special shapes. It is located in the middle of the back, connected to the skull, connected to the ribs in the middle, and the lower end forms the pelvis with the hip bone. From top to bottom, there are 7 cervical vertebrae, 5 thoracic vertebrae 12, 5 lumbar vertebrae, 5 sacrum 1 root (composed of 5 sacrums) and 24 coccyx 1 root (composed of 4 coccyxes) * * * independent vertebrae (adults). A longitudinal spinal canal with a spinal cord is formed in the spine from top to bottom. The spine is the backbone of the body. Upload a medical map, so that everyone can find the relevant part in the middle of the back, with the upper end connected to the skull and the lower end reaching the tip of the coccyx. The spine is divided into five parts: neck, chest, waist, sacrum and tail. It is long and active, like a scaffold, hanging on the chest wall and abdominal wall. The lower part is relatively short and fixed. The weight of the body and the impact it receives are transmitted to the lower limbs. The spine is composed of vertebrae and intervertebral discs, which is a very flexible and movable structure. With the exercise load of the body, the shape of the spine will change considerably. The activity of the spine depends on the integrity of the intervertebral disc and the coordination between the articular processes of the related vertebrae.

appear

Qianmianguan

The vertebral body gradually widens from top to bottom, and the second sacral vertebra is the widest, which is related to the load of the vertebral body. From the auricular surface of the sacrum to

Next, gravity passes to the lower limb bones, and the volume gradually decreases.

Houmian restaurant

The spinous process of the spine is connected into a longitudinal ridge, which is located at the midline of the back. The spinous process of cervical spine is short and forked, nearly horizontal. The spinous process of thoracic vertebra is slender and inclined to the back. Arranged in tiles; The spinous process of lumbar spine is flat and horizontally backward.

Side view

It can be seen that the neck, chest, waist and sacrum are four physiological bends, with the neck and waist bending forward and the chest and sacrum bending backward.

Under normal circumstances, the spine has four bends, which are S-shaped when viewed from the side, namely cervical lordosis, thoracic kyphosis, lumbar lordosis and sacral kyphosis. Long-term incorrect posture and some diseases (such as thoracic tuberculosis, wet spondylitis, etc. ) can make the spine form abnormal bending, such as hunchback.

The spine is not only an organ that supports your body, buffers the pressure and impact of the body, and protects the internal organs; Spinal lesions not only cause pain and numbness in the neck and waist; It can also cause arrhythmia, headache and dizziness, stomachache and diarrhea, hypertension and sexual dysfunction. At present, there are more than 100 diseases related to spine. Once the human spine is abnormal, there will be many visceral diseases that seem to have nothing to do with the spine. These diseases involve internal medicine, surgery, neurology, endocrinology, gynecology, pediatrics, otolaryngology, ophthalmology, stomatology and dermatology. Many patients have been transferred to many hospitals and departments, and the disease has not been fundamentally diagnosed and treated because the cause of spinal diseases has not been solved.