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“Don’t make me read, make me understand “ www.makemegenius.com– Full of ingredients to make your child a genius. Copyright of www.makemegenius.com, for more videos ,visit us. Human Digestive System Copyright of www.makemegenius.com, for more videos ,visit us. Functions • • • • • Ingest food Break down food Move through digestive tract Absorb digested food and water Eliminates waste materials Copyright of www.makemegenius.com, for more videos ,visit us. Mouth • • • • • • Breaks down food into small pieces Begins starch digestion (amylase) Saliva produces amylase and lubricates food Moves food into esophagus Epiglottis covers trachea Peristalsis moves food to stomach Copyright of www.makemegenius.com, for more videos ,visit us. Stomach • First opening – cardiac sphincter • Muscles churn food – more mechanical digestion. • Glands produce gastric juice = pepsin + HCl • Pepsin breaks down proteins (only at pH 2) • Food leaves after 2-4 hrs • Second opening – pyloric sphincter Copyright of www.makemegenius.com, for more videos ,visit us. Small Intestine • Digestion is finished here – Peristalsis finishes mechanical digestion – Pancreatic juice produces enzymes to finish chemical digestion of fats, proteins and carbohydrates Question: What are the monomers for fats, proteins, and carbohydrates? Copyright of www.makemegenius.com, for more videos ,visit us. Liver • Produces bile Question: What is the function of bile? Bile is stored in the gallbladder. Copyright of www.makemegenius.com, for more videos ,visit us. Large Intestine • • • • Absorbs water Bacteria live here (produce methane) Bacteria produce B vitamins and Vitamin K Stores solid waste in rectum until elimination. Copyright of www.makemegenius.com, for more videos ,visit us. Endocrine Glands Define endocrine gland here. • Pancreas – insulin = blood sugar • Thyroid – thyroxine = metabolic rates • Thyroid – calcitonin = blood calcium levels • Parathyroid – PTH = calcium, phosphorus absroption rates and helps make Vitamin D Copyright of www.makemegenius.com, for more videos ,visit us. Thanks Submitted by Abhishek Noida Copyright of www.makemegenius.com, for more videos ,visit us. If you also want to share your own or your kid’s presentation(ppt) please send it on [email protected] Copyright of www.makemegenius.com, for more videos ,visit us. “Don’t make me read, make me understand “ www.makemegenius.com– Full of ingredients to make your child a genius. Copyright of www.makemegenius.com, for more videos ,visit us.