Asked by: Georgieva Lindemeirmedical health bone and joint conditions
What does the long thoracic nerve innervate?
Last Updated: 7th May, 2020
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In this regard, what muscles are innervated by the long thoracic nerve?
The long thoracic nerve originates from the C5–C7 roots and descends in the axilla, posterior to the brachial plexus, to innervate the serratus anterior muscle, which anchors the scapula to the chest wall. Injuries to the long thoracic nerve cause winging of the scapula, especially with the arm in anterior abduction.
Likewise, how do you injure the long thoracic nerve? Long thoracic nerve is more prone to injury due to its excessive length. Usually, injury to this nerve occurs due to trauma, direct blow to the rib area, over stretching or strenuous repetitive movements of the arms, and sustained bearing of excessive weight over the shoulder.
In this way, what does the long thoracic nerve do?
The long thoracic nerve is the motor nerve to the serratus anterior muscle, which functions to pull the scapula forward around the thorax, allowing for anteversion of the arm, and to lift the ribs, assisting in respiration.
Which thoracic nerve controls what?
Thoracic Spinal Nerves. The thoracic spine has 12 nerve roots (T1 to T12) on each side of the spine that branch from the spinal cord and control motor and sensory signals mostly for the upper back, chest, and abdomen. Each thoracic spinal nerve is named for the vertebra above it.