First rib (right) (Costa prima)
Educational content only — not medical advice.
Anatomy
Right rib 1: The broadest, shortest and flattest rib, with a single articular facet and a scalene tubercle marking exactly the attachment of the anterior scalene muscle.
Clinical notes
First-rib fracture signals high-energy chest trauma and may accompany subclavian artery or brachial plexus injury; the narrow thoracic outlet also mimics thoracic outlet syndrome when injured.
Related structures
Educational references
FAQ
What is the role of the First rib (right)?
Right rib 1: The broadest, shortest and flattest rib, with a single articular facet and a scalene tubercle marking exactly the attachment of the anterior scalene muscle.
Why is the First rib (right) clinically important?
First-rib fracture signals high-energy chest trauma and may accompany subclavian artery or brachial plexus injury; the narrow thoracic outlet also mimics thoracic outlet syndrome when injured.
Source & license
Derived from Z-Anatomy (Gauthier Kervyn et al.), CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/); upstream geometry from BodyParts3D, © The Database Center for Life Science. license details