Which spinal nerves affect which parts of the body?
The nerves of the cervical spine go to the upper chest and arms. The nerves in your thoracic spine go to your chest and abdomen. The nerves of the lumbar spine then reach to your legs, bowel, and bladder. These nerves coordinate and control all the body’s organs and parts, and let you control your muscles.
How does the spine work with other systems?
The spinal nerves carry electrical signals from the brain to muscles of the skeleton and internal organs via the spinal cord. Similarly, they carry sensory information like touch, pressure, cold, warmth, pain and other sensations from the skin, muscles, joints and internal organs to the brain via the spinal cord.
How does the spine affect your body?
The spine supports your body and helps you walk, twist and move. The disks that cushion vertebrae may compress with age or injury, leading to a herniated disk. Exercises can strengthen the core muscles that support the spine and prevent back injuries and back pain.
Which vertebrae affect which nerves?
The spinal nerves are numbered according to the vertebrae above which it exits the spinal canal. The 8 cervical spinal nerves are C1 through C8, the 12 thoracic spinal nerves are T1 through T12, the 5 lumbar spinal nerves are L1 through L5, and the 5 sacral spinal nerves are S1 through S5. There is 1 coccygeal nerve.
What part of the spine controls legs?
lumbar spine
Sacral region The lowest part of the spinal cord contains 5 pairs of nerves. These control the thighs, lower legs, and the genital and anal areas. Sacral nerve injury can happen anywhere from the upper lumbar spine down to the sacrum.
What nerves are affected by C5 C6 C7?
From the lateral cord, C5, C6, and C7 supply the pectoralis major and minor muscles, via the lateral and medial pectoral nerves, as well as the coracobrachialis, brachialis and biceps brachii, via the musculocutaneous nerve.
Which two areas of the spine are most susceptible to injury?
The lumbar spine contains 5 vertebral bones that form a lordotic curve (same as the cervical spine) and run through the lower back. The lumbar spine is more mobile than the thoracic spine yet also carries more weight, making it the most likely region of the spine to become injured and painful.
What part of the spinal cord controls the legs?
Sacral region The lowest part of the spinal cord contains 5 pairs of nerves. These control the thighs, lower legs, and the genital and anal areas. Sacral nerve injury can happen anywhere from the upper lumbar spine down to the sacrum.
How do you know if your spine is damaged?
Emergency signs and symptoms of a spinal cord injury after an accident include: Extreme back pain or pressure in your neck, head or back. Weakness, incoordination or paralysis in any part of your body. Numbness, tingling or loss of sensation in your hands, fingers, feet or toes.
What nerves are affected by C4 C5 C6 and C7?
Classic Patterns of Cervical Radiculopathy
Nerve root | Interspace | Pain distribution |
---|---|---|
C5 | C4–C5 | Neck, shoulder, lateral arm |
C6 | C5–C6 | Neck, dorsal lateral (radial) arm, thumb |
C7 | C6–C7 | Neck, dorsal lateral forearm, middle finger |
What part of your spine controls your stomach?
Lumbar: The 5 vertebrae in your low back, curves inward toward the abdomen. This area carries all of the weight of the upper body while providing flexibility and movement to the waist region.
How does the spinal cord influence the rest of the body?
It is through the spinal cord and its branching nerves that the brain influences the rest of the body, controlling movement and organ function. As the spinal cord runs through the spinal canal, it branches off into 31 pairs of nerve roots, which then branch out into nerves that travel to the rest of the body.
What does each part of your spine mean?
Every part of your spine corresponds to an organ, an emotion and pain. This area is located between the skull and the shoulders and it’s made up of 7 vertebrae. When written, they are expressed with the letter “C”, for cervical, and a number, to identify which one it is.
How does the spine support the body?
The spine supports your body and helps you walk, twist and move. The disks that cushion vertebrae may compress with age or injury, leading to a herniated disk. Exercises can strengthen the core muscles that support the spine and prevent back injuries and back pain. The spine has three normal curves: cervical, thoracic and lumbar.
What are the conditions that affect spine health?
Other conditions that affect spine health include: Arthritic conditions, such as ankylosing spondylitis (AS). Back strains and sprains. Birth defects such as spina bifida. Bone spurs (jagged edges on vertebrae that put pressure on the spinal cord and nerves).
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