Digestive system

• Saliva contains enzymes called amylase and lipase, which begin to break down carbohydrates and fats respectively.
• Digestion begins with chewing, which breaks down large pieces of food into small ones.
• The digestion process is the breakdown of food into smaller molecules that can be absorbed by cells.
• The tongue pushes food into the pharynx (throat) where it is swallowed.
• Swallowing involves coordinated movements between the muscles of the mouth, throat, esophagus, and diaphragm.
• The tongue pushes the food towards the back of the mouth where it is swallowed.
• Mechanical digestion involves breaking up food into smaller particles through chewing or grinding.
• Food passes through the esophagus by peristalsis, a series of muscle contractions that push the food towards the stomach.
• Swallowing involves three stages - voluntary swallowing (initiated by the brain), pharyngeal stage (food passes through the throat), and esophageal stage (food travels from the throat to the stomach).
• Mechanical digestion involves breaking up food into smaller particles through chewing or grinding.
• Food passes through the esophagus by peristalsis, a series of muscle contractions that push the food towards the stomach.
• Swallowing involves three stages - voluntary swallowing (initiated by the brain), pharyngeal stage (food passes through the throat), and esophageal stage (food travels from the throat to the stomach).
• Enzymes are biological catalysts that speed up chemical reactions without being used up themselves.
• Voluntary swallowing occurs when we choose to eat or drink something.
• Enzymes are biological catalysts that speed up chemical reactions without being used up themselves.
• Food enters the stomach through the cardiac sphincter, which prevents acidic contents from entering the esophagus.
• Swallowing involves three stages: voluntary swallowing, involuntary swallowing, and peristalsis.
• Enzymes are biological catalysts that speed up chemical reactions without being used up themselves.
• Food enters the stomach through the cardiac sphincter, which prevents acidic contents from entering the esophagus.
• Swallowing involves three stages: voluntary swallowing, involuntary swallowing, and peristalsis.
• Chemical digestion occurs when enzymes from saliva, stomach acid, bile, pancreatic juice, and intestinal juices break down food further.
• Food passes through the esophagus and enters the stomach via peristalsis.
• Involuntary swallowing happens when we accidentally swallow things like water or saliva.
• Chemical digestion occurs when enzymes from saliva, stomach acid, bile, pancreatic juice, and intestinal juices break down food further.
• Food passes through the esophagus and enters the stomach via peristalsis.
• Peristalsis is the contraction and relaxation of smooth muscle tissue that propels food along the digestive tract.
• In the stomach, hydrochloric acid from gastric glands helps denature proteins and kill bacteria.
• Saliva contains an enzyme called amylase which begins the breakdown of carbohydrates.
• Enzymes are proteins produced by living organisms that speed up chemical reactions without being used up themselves.
• Chemical digestion breaks down large molecules into smaller ones using enzymes produced by various organs.
• Saliva contains an enzyme called amylase which begins the breakdown of carbohydrates.
• Enzymes are proteins produced by living organisms that speed up chemical reactions without being used up themselves.
• Chemical digestion breaks down large molecules into smaller ones using enzymes produced by various organs.
• Chemical digestion occurs when enzymes break down large molecules into smaller ones.
• The stomach churns and mixes the food, forming a thick liquid called chyme.
• Chemical digestion involves enzymes breaking down complex substances into simpler forms.
• Chemical digestion occurs when enzymes break down large molecules into smaller ones.
• The stomach churns and mixes the food, forming a thick liquid called chyme.
• Chemical digestion involves enzymes breaking down complex substances into simpler forms.
• In the stomach, hydrochloric acid and enzymes are added to further break down food.