The brain and spinal cord together make up the central nervous system
The spinal cord functions primarily in the transmission of neural signals between the brain and the rest of the body but also contains neural circuits that can independently control numerous reflexes and central pattern generators.
The spinal cord has three major functions: as a conduit for motor information, which travels down the spinal cord, as a conduit for sensory information in the reverse direction, and finally as a center for coordinating certain reflexes
The human spinal cord is divided into 31 different segments. At every segment, right and left pairs of spinal nerves (mixed; sensory and motor) form.Nerve rootlets combine to form nerve roots. The spinal cord is a long, slender cable of nerve tissue which extends lengthwise through the vertebrae of the spinal column. At the upper end it connects with the brain through an opening in the floor of the skull. It is well protected by the vertebrae, whose bony processes join together to form a canal within which the spinal cord is located.
In the human vertebral column there are normally thirty-three vertebrae the upper twenty-four are articulating and separated from each other by inter vertebral discs, and the lower nine are fused in adults, five in the sacrum and four in the coccyx or tailbone.
Muscles are named according to their shape, location, or a combination. They are further categorized according function such as flexion, extension, or rotation. Muscles and ligaments work together to support the spine, hold it upright, and control movement during rest and activity.
Skeletal muscle is striated (striped) in appearance. It is innervated, under voluntary control, and has the fastest contraction rate of all muscle. Prior to a muscle contracting, a nerve impulse originates in the brain and travels through the spinal cord to the muscle
Three types of back muscles that help the spine function are extensors, flexors and obliques.
The ex tensor muscles are attached to the posterior (back) of the spine and enable standing and lifting objects. These muscles include the large paired muscles in the lower back (erector spine), which help hold up the spine, and gluten muscles.
The flexor muscles are attached to the anterior (front) of the spine (which includes the abdominal muscles) and enable flexing, bending forward, lifting, and arching the lower back.
The oblique muscles are attached to the sides of the spine and help rotate the spine and maintain proper posture.
Let me explain how your back works.
If your job is repetitive or you have bad posture, stress, it can cause stiffness, pain, trapped nerves. People start to worry what’s wrong with them, they suffer with pain and are not so efficient at work or everyday life.No reason to give up!Have a look how spine affects your general health!