Collateral Branch of Second Intercostal Nerve (Left)
Ramus collateralis nervi intercostalis secundi
Read moreCollateral Branch of Second Intercostal Nerve (Left) Quick Facts
Origin: Second intercostal nerve.
Course: Within the second intercostal space.
Branches: None.
Supply: Intercostal muscles and parietal pleura.
Related parts of the anatomy
Collateral Branch of Second Intercostal Nerve (Left) Origin
The collateral branches arise from the anterior rami of the thoracic nerves (or intercostal nerves) early in their course.
Collateral Branch of Second Intercostal Nerve (Left) Course
The collateral branches arise medial to the angles of the ribs. It courses along the intercostal space, following the superior border of the rib below and within the same muscular plane as the anterior ramus (or intercostal nerve). The collateral branches are accompanied by a collateral artery and vein, respectively.
Collateral Branch of Second Intercostal Nerve (Left) Branches
There are no named branches of the collateral branches; however, they may rejoin the anterior ramus before it gives off its anterior cutaneous contribution.
Collateral Branch of Second Intercostal Nerve (Left) Supplied Structures & Function
The collateral branches aid in supplying the intercostal muscles and parietal pleural of the lungs.
Learn more about this topic from other Elsevier products
Intercostal Nerve
Slipping rib syndrome is produced by impingement of an intercostal nerve between two costal cartilages, secondary to the subluxation of an interchondral articulation.
