Ball-and-socket joints are classified functionally as multiaxial joints because they can move bones along several axes. The muscles that surround the joints permit the humerus and femur to move away from the bodyâs midline (abduction), toward the bodyâs midline (adduction), forward (flexion), and backwards (extension).
Ulcer. A likely cause of stomach pain after eating is an ulcer. An ulcer is a deep, open sore in the stomach or intestines. The reason for stomach pain may be food or stomach acid that irritates the ulcer.
1 Duodenal ulcers often cause a gnawing pain in the upper stomach area several hours after a meal, and patients can often relieve the pain by eating. 2  Many patients also have heartburn. 3  Gastric ulcers may cause a dull, aching pain, often right after a meal. 4  Eating does not relieve the pain and may even worsen it.