Essay On The Digestive System

The body is composed of primary networks that perform as one that sustain a body to function properly such as central nervous system, circulatory system, digestive system, musculoskeletal system, and respiratory system. The central nervous system maintains the body and brain activity it is composed of two sections the brain and the spinal cord this system executes multiple functions that regulate voluntary and involuntary operations such as speech, walking, blinking and breathing these senses are stimulated by the system of neurons, neurons are cells within the nervous system. Neurons consists of four major sections such as a cell body, an axon, dendrites, and synaptic terminal. The purpose of neurons is receiving incoming information and

communicating

Blood is also able to protect the body from any hazardous infections or diseases that causes bacteria. Blood also manages the temperature and controls the balance temperature as needed. Blood is able manage the amount of salts and water that the cells need to operate. Blood is responsible for managing the absorption of hydrogen ions also known as PH balance.

The digestive system requires the mouth, throat, esophagus, stomach, small intestine, large intestine, pancreas, liver and gallbladder. Digestion is originated in the mouth, with the reaction of salivary amylase. Food is them proceed to the esophagus and in the stomach. The chewed food motion by the muscular movement is known as peristalsis, from the mouth to the pharynx, and then transferred to epiglottis that is a canvas over the larynx. The epiglottis is sealed off from the air passageway due to possible choking. The cardiac sphincter restrains reflux of flowing back of stomach substance into the esophagus. Food then leaves the stomach this is called chyme and then passed along to the small intestines, this process can take up to 2 to 4 hours. The small intestine is where the majority of digestion is originated. A pyloric sphincter regulates the rate