medilaw.tv - Cervical Spine Anatomy Central Nervous System osteopath movies. Shows the brain within the skull, and the spinal cord within the vertebral column. Also shows the nerve roots and peripheral nerves to the arms, trunk, and legs. physiotherapy multimedia. The nervous system can be divided into the central nervous system (brain and spinal nerves) and the peripheral nervous system (somatic, autonomic and enteric components). The somatic peripheral nerves carry messages between the spinal cord and body. The sensory nerves carry messages towards the brain, such as information about pain, pressure, temperature and joint position. The motor nerves carry impulses to the muscles to control muscle contraction/relaxation.
The spinal nerves within the vertebral canal form the spinal cord. The spinal cord starts at the base of the brain, and passes down the vertebral canal. Cervical Spine Anatomy Central Nervous System osteopath movies.
The nerves leave the spinal cord through gaps between the vertebrae (intervertebral foramina), and travel to all parts of the trunk and limbs.
The nerves that leave the neck, or cervical spine, go to the arms.
Cervical Spine Anatomy Central Nervous System osteopath movies.
The nerves that leave the chest, or thoracic spine, go to the chest and belly.
The nerves that leave the lower back, or lumbar spine, go to the pelvis and legs.
The vertebrae provide protection and support for the spinal cord, in the same way that the skull provides protection and support for the brain.
If a nerve is irritated by chemical inflammation or physical compression or traction, it may not transmit its messages correctly, or it may spontaneously generate new messages. An irritated motor nerve may not transmit its impulses to its muscle, leading to weakness or paralysis of that muscle. An irritated sensory nerve may not transmit its sensations, leading to a sensation of numbness. The irritated sensory nerve may generate its own impulses to the brain, which can be perceived as paresthesia (pins and needles) or pain in the region of the body that normally transmits along that nerve. Cervical Spine Anatomy Central Nervous System osteopath movies.