Science Starter
1. How many organs are there in the digestive system?
2. Which organs are involved in mechanical digestion?
3. Which organ does the majority of the digestion?
4. What is the difference between the small intestine
and large intestine?
5. Which organ is associated with diabetes?
Today’s Agenda
• Science Starter
• Yesterday’s Notes…
• Organ Poster Review
• Graphic Organizer & Study Guide
• Dissection Prep
Nutrition, Metabolism, & Energy
• Essential nutrients supply energy (calories)
and supply the necessary chemicals which
the body itself cannot synthesize (create)
• The diet needs essential nutrients
• Metabolism: chemical reactions in the
body (anabolism and catabolism)
Slow Metabolism
• Inactivity is the main cause of a slow
metabolism
• Dieting or cutting calories also lowers your
metabolism over time
• As the body's cells age, they slow down
the pace at which they use energy
How to improve metabolism?
• Lift Weights
• Sleep More
• Drink Water
• Drink Caffeine
• Eat Protein
Organ Poster Review
• Choose a partner and an organ in the digestive system
• Design a poster on your organ to share with the class
• These posters will be used to fill out your study guide!
• Make sure they are informative, correct, and aesthetic!
• Include the following:
• Drawing of organ (or picture)
• Associated organs (connections)
• Function (mech vs. chem), enzymes, important structures, etc..
• Malfunction (role in digestive system health)
Cecum & Appendix
• The main functions of the
cecum are to absorb fluids and
salts
• It receives chyme from the ileum
• Appendix- may play a role in the
immune system in addition to
the digestive system (not vital)
Malfunctions
• Appendicitis- inflammation
due to bacteria causing pain
• Irritable Bowl Syndromesensitivity to food items
Colon
• 3 parts: Ascending, transverse, and descending
• Its function is to reabsorb fluids and process
waste products from the body and prepare for
its elimination.
• Toxic megacolon occurs as a complication of
inflammatory bowel disease
• Colon Cancer
• Dehydration and constipation are due to
problems with water absorption
Graphic Organizer & Study Guide
• Fill out the front (graphic organizer) using the posters
created in class today
• After you fill out the organizer, use the information to
answer the study questions on the back
• Study this information and turn in the study guide on
Friday!
• If you finish, visit my website and look at the rat
dissection links. Watch the video and prep for tomorrow!