The digestive system is the series of tubelike organs ... succession of hollow organs that transport their contents through muscular contractions known as peristalsis. The esophagus empties ...
The body is a dynamic collection of chemicals constantly interacting. The nervous system is the most basic of those interactions. This is the foundation for understanding physiology as a whole.
The aorta is an artery and is the largest blood vessel in the body. As an artery, the aorta carries blood away from the heart. (Most arteries carry oxygenated blood.) The aorta plays an essential part ...