Digestive System Human
Digestive system is a complex network of organs and processes that work together to break down food into nutrients, absorb those nutrients into the body, and eliminate waste products. It plays a crucial role in the digestion and absorption of nutrients necessary for our survival and overall health. The primary organs of the digestive system include: Mouth Digestion begins in the mouth where food is broken down mechanically by chewing and mixed with saliva, which contains enzymes that start the chemical digestion of carbohydrates. Esophagus : The esophagus is a muscular tube that connects the mouth to the stomach. It moves food from the mouth to the stomach through rhythmic contractions known as peristalsis. Stomach: The stomach is a muscular sac that continues the mechanical and chemical digestion of food. It secretes gastric juices, including hydrochloric acid and enzymes, to break down proteins and kill bacter...