digestive system

• The stomach is the organ that receives food from the esophagus, mixes it with gastric juices to form chyme, and stores it until it can be further processed by the small intestine.
• the mouth is where we chew our food into smaller pieces so they are easier to swallow
• salivary glands produce saliva which contains enzyme amylase that breaks down carbohydrates
• teeth break up large chunks of food into smaller ones
• the mouth is where we chew our food into smaller pieces so they are easier to swallow
• the esophagus transports food from the throat to the stomach through peristalsis (muscle contractions)
• the epiglottis covers the opening to the trachea during swallowing to prevent food from entering the airway
• oesophagus carries swallowed food to the stomach through peristalsis (muscle contractions)
• the pharynx connects the oral cavity to the larynx and esophagus
• pharynx connects the back of the throat to the oesophagus and nasal cavity
• tongue moves food around your mouth and helps us taste things
• the liver produces bile which helps break down fats
• tongue moves food around your mouth as well as tasting things
• the liver produces bile which helps break down fats
• the esophagus is where the food travels through on its way to the stomach
• The process of digestive system

  > ingestion

  > propulsion

  > digestion

  > absorption

  > excretion
• Ingestion - taking food into our body by eating or drinking
• Propulsion - moving food along the digestive tract using peristalsis (muscle contractions)
• Ingestion - taking food into our body by eating or drinking
• Digestion - breaking down large molecules of food into smaller ones that can be absorbed into the bloodstream.
• Digestion - breaking down large molecules of food into smaller ones that can be absorbed into bloodstream
• Excretion - removing waste products from the body, such as undigested food particles and water.
• Absorption - absorbing nutrients from digested food into bloodstream
• Absorption - absorbing nutrients from digested food into the bloodstream, which then carries them throughout the body.
• Excretion - removing waste products from the body
• Absorption - absorbing nutrients from digested food into the bloodstream through the walls of the small intestine.
• The mouth is where ingestion occurs
• Pharynx - passageway connecting mouth with esophagus; also known as throat
• Mouth - first part of the digestive system; contains teeth used to break down food mechanically, salivary glands produce enzymes which begin chemical breakdown of carbohydrates, fats and proteins.
• Elimination - removal of wastes from the body through urine, feces, sweat, etc.
• Digestive system


  A complex and coordinated system of organs and structures that work together to process food, extract nutrients, and eliminate waste from the body
• Ingestion


  1. Entry of food into the alimentary canal through the mouth

  2. Food is chewed and mixed with saliva, which contains enzymes that begin breaking down carbohydrates and some lipids

  3. Chewing increases the surface area of the food and allows an approximately sized bolus to be produced
• Oral cavity


  Adapted to receive food by ingestion, break it into small particles by chewing and mix it with saliva
• Teeth


  • The beginning of the digestive system, essential for chewing food as the first step in converting it into molecules the body can use
  • If teeth aren't healthy, food can't be broken down as effectively
• The tongue knows five different tastes: salty, sour, bitter, sweet, and savory
• The average tongue is actually three inches in length. The longest tongue on record? Nearly 4 inches long!
• It's a common misconception that your tongue contains taste zones
• Our tongue/mouth salivate when we see food or smell foods
• Salivary glands


  • Produce saliva and empty it into the mouth through ducts, lubricating the mouth and throat
  • Saliva comprises water, electrolytes, mucus, protein, and enzymes like amylase (breaks down starches) and lipase (breaks down fats)
• Pharynx


  A short tube that serves as a common passageway for both food and air, connecting the mouth and esophagus