Digestive System: Labeling, Matching and Review & Reflection Questions

Master the digestive system! Label organs, match functions, and review key concepts with this engaging worksheet.

What are the parts of the digestive system? Label the parts of the digestive system salivary glands esophagus stomach pharynx gallbladder pancreas duodenum jejunum ileum anus Tongue Oral Cavity Liver Rectum Cecum Colon Large intestine Match the organ with its function. bile salt emulsification tongue positions food for chewing food with saliva bolus food down teeth physical breakdown of food (mechanical digestion) salivary amylase digests starch epiglottis stops food from entering the respiratory tract pharynx passageway for both food and air ileum absorption of digested food stomach secretes a hormone called gastrin to mechanically and chemically break down food duodenum secretes a hormone called secretin and CCK to aid in chemical digestion/ small intestine Liver produces bile to physically breakdown lipids fats changes in to fatty acid and glycerol after digestion pancreas produces bicarbonate ions to neutralize acidic chyme in duodenum jejunum where some of the digestion finishes off and absorption begins/ small intestine that contains microvilli appendix vestigial structure that no longer plays a role in humans cecum first part of large intestine large intestine storing food waste/ reabsorbing water from food/ contains helpful bacteria Digestive Tract Organs vs. Accessory Organs Classify each item below as either part of the Digestive Tract or Accessory Organ group. Digestive Tract Comes into contact with materials passing through mouth esophagus stomach small intestine large intestine anus pharynx Accessory Does not come into contact with material passing through, but aids in digestion liver gallbladder salivary glands pancreas Through the digestive system Watch as a small pill sized camera flows through the digestive tract. After watching the Pill Camera work its way through the digestive system what is something you found interesting? Remember to explain WHY you thought it was interesting. Where does Physical Digestion take place in the body? Why is this called "Physical Digestion? Where does Chemical Digestion take place? Why is it called "Chemical Digestion"? Making Connections When we get indigestion or "heart burn", we often take a TUMS tablet or Pepto Bismol. This medicine is considered a "basic chemical solution". What acid in the stomach is it neutralizing so we feel better? How does eating a diet rich in fiber and drinking plenty of water help maintain a healthy digestive tract?