Disclaimer: This article is for informational purposes only and does not constitute medical advice. If you are experiencing symptoms related to the thoracic nerves, please consult a medical professional.
If the spinal cord is severed in the thoracic region, it results in paraplegia (paralysis of the legs). Because the thoracic nerves control the trunk, injuries here affect core stability and trunk control. However, because the thoracic spine is relatively rigid and protected by the rib cage, injuries here are less common than in the cervical or lumbar spine. thoracic nerve
Long Thoracic Nerve (arising from C5-C7) is vital for shoulder movement, specifically innervating the serratus anterior muscle. Key Functions The thoracic nerves are essential for several critical bodily functions: Respiration: They control the intercostal muscles that help the rib cage expand and contract during breathing. Sensory Input: They provide "dermatomal" sensation to the skin of the upper back, chest, and abdomen. Organ Regulation: Through the sympathetic chain, they contribute to the "fight-or-flight" response and autonomic regulation of the heart and lungs. Posture and Balance: They innervate deep back and abdominal muscles that maintain stability and allow for tasks like coughing. Common Disorders and Conditions Damage or compression of these nerves can lead to various clinical issues: Thoracic Radiculopathy: Compression of a nerve root (e.g., from a herniated disc) causing pain that "wraps around" the torso. Thoracic Outlet Syndrome (TOS): Compression of nerves or blood vessels in the space between the collarbone and first rib, leading to numbness or weakness in the arm. Long Thoracic Nerve Palsy: Injury to this nerve often results in Disclaimer: This article is for informational purposes only
These 12 pairs of nerves emerge from the spinal column below each corresponding thoracic vertebra. They are mixed nerves, meaning they carry both motor and sensory information. Thoracic nerve block techniques - UpToDate Because the thoracic nerves control the trunk, injuries