Human Digestive System

• As to Action involves Physical Digestion and Chemical Digestion
• As to Location involves Intracellular Digestion and Intercellular Digestion
• Oral Glands secretes mucus or saliva
• Pharynx or the Throat is the passageway of food and air
• Esophagus involves peristalsis or wave-like movement
• Stomach is the largest and highly muscular part of the digestive tube
• Stomach: Cardiac Sphincter is the anterior end
• Stomach: Fundus is the most expanded part of the stomach
• Stomach: Pyloric Sphincter is the posterior end
• Small Intestine is the site of final digestion and absorption with the help of villi
• Small Intestine: Duodenum is the anterior end
• Small Intestine: Jejunum is the middle division
• Small Intestine: Ileum is the posterior end
• Large Intestine absorbs water
• Large Intestine: Caccum is the anterior portion
• Large Intestine: Rectum is the posterior portion
• Gastric Juice is composed of Mucin for lubrication, HCI to convert pepsinogen into pepsin, Pepsinogen to digest protein into polypeptide chains, and Lipase to digest fat into fatty acid and glycerol
• In Inestinal Juice, Enterokinase activates trypsinogen to trypsin
• Liver secretes bile which is stored in the Gallbladder