Right upper quadrant (RUQ) pain can happen due to conditions affecting the liver, gallbladder, kidneys, pancreas, or intestines.
During embryonic development, the right ventricle is formed from the secondary heart field into a crescent-shaped, thin-walled structure.
Right shoulder and arm pain commonly stems from rotator cuff issues like tendinitis, bursitis, or impingement, where overuse or injury irritates the tendons and surrounding tissues.
The human brain includes two hemispheres connected by a bundle of nerves.