Anatomy of stomach

  • stomach- muscular sac with thick walls

    • Continues the process of mechanical and chemical digestion

    • Four main regions of the stomach:

      • Cardiac region

      • Fondus

      • body

      • pyloric region

  • The digestive system has thick rings of muscle at certain points called sphincters. These serve as gatekeepers to allow food to enter and leave at appropriate times.

  • The stomach allows food to enter through the cardiac sphincter and leave through the pyloric sphincter

    • Cardiac sphincter: separates esophagus from stomach

    • Pyloric sphincter: separate stomach from small intestine