Collateral branch of intercostal nerve - Thoracic wall-Breast - Muscles of thorax - e-Anatomy
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Collateral branch of intercostal nerve

Ramus collateralis nervi intercostalis

  • Related terms: Collateral branch

Definition

Collateral branch of intercostal nerve serves as an accessory intercostal nerve which runs along the superior border of the lower rib, inferior and parallel to the main intercostal nerve. It innervates the intercostal muscles, parietal pleura and periosteum of the rib.

References

Text written by Muhammad A. Javaid, MD, PhD © 2022 IMAIOS.

  • Drake, R.L., Vogl, A.W. and Mitchell, A.W.M. (2009). ‘Chapter 3: Thoracic Wall’ in Gray’s anatomy for Students. (2nd ed.) Philadelphia PA 19103-2899: Elsevier, pp. 155.

  • Glenesk, N.L., Rahman, S. and Lopez, P.P. Anatomy, Thorax, Intercostal Nerves. [Updated 2022 May 29]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK538238/

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