The arm muscles are responsible for many movements, from complex precision tasks such as painting, to tasks requiring great strength, such as lifting. The muscles attach to the bones of the arms: the humerus in the upper arm and the ulna and radius in the forearm.
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.