Several muscles attach to the sternum, including some of the abdominal muscles and those that move the head, neck, and arms — the pectoralis major is one of the most prominent. The xiphoid process serves as one of the attachment points for the diaphragm, which is the most important muscle for breathing.

This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.