Roughly 90% of humans are right-handed and this is one of the traits that separates us from most other primates who don’t really show any overall preference for left or right handedness.
Pain in the right shoulder and arm can occur due to injury, wear and tear, and other health conditions.
Lower right abdominal pain can stem from digestive issues like gas, indigestion, and irritable bowel syndrome (IBS), as well as appendicitis, kidney stones, or hernias.
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During embryonic development, the right ventricle is formed from the secondary heart field into a crescent-shaped, thin-walled structure.
The human brain includes two hemispheres connected by a bundle of nerves.