nutrition lesson 4 digestive system vertebrates anatomy ...€¦ · nutrition lesson 4 digestive...
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Nutrition Lesson 4 Digestive system vertebrates Anatomy..notebook
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March 27, 2018
Mar 2412:29 PM
Aim: Explain the anatomy of the vertebrate digestive system and human digestion.
Hw. Study for nutrition unit test 3/29 am section and 3/28
1. Review: What is digestion?
2. Vocab and Label the main organs and pay attention to function.
3. Complete chart using what you remember from explanation.
4. Correct chart.5. Complete chart of glands using text book.
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Nutrition Lesson 4 Digestive system vertebrates Anatomy..notebook
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March 27, 2018
Mar 271:07 PM
Nutrition Lesson 4 Digestive system vertebrates Anatomy..notebook
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March 27, 2018
Mar 261:54 PM
1. Vocabulary
Glands: Organs that produce a secretion.
Villi:Hairlike projections in the small intestine where absorption of nutrients takes place
Peristalsis:Alternate waves of relaxing and contracting of the muscular wall of the digestive tube.
Sphincter:Valve like structure that prevents fluids from backing up.
Nutrition Lesson 4 Digestive system vertebrates Anatomy..notebook
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March 27, 2018
Mar 2412:32 PM
Nutrition Lesson 4 Digestive system vertebrates Anatomy..notebook
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March 27, 2018
Apr 18:06 AM
Nutrition Lesson 4 Digestive system vertebrates Anatomy..notebook
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March 27, 2018
Mar 241:29 PM
1. moistens food to ease swallowing.2. Amylase (in saliva) for digestion of carbs.
1. food is moved by peristalsis into stomach.
1. Produces hydrochloric acid2. Produces pepsin to start digesting proteins3. Churning (movement) mixes foods
1. Forms 3 enzymes (amylase, trypsin lipase)2. produces sodium bicarbonate to neutralize acid.
1. Liver produces bile to emulsify (break into droplets) fats2. Bile is stored in the gallbladder (sent to small intestine.
1. Final digestion of nutrients is completed2. peristaltic movements deliver chime to L. I.3. Digested food is absorbed by villi (villus) into blood stream.
1. Vestigial structure not known function
1. Absorbs large amounts of water.2. Eliminates undigested food as solid waste.
Main functions, chemical made
1. physical digestion (teeth)to increase surface contact. 2. Chemical digestion of carbs starts here.
Human digestive system organ name
Nutrition Lesson 4 Digestive system vertebrates Anatomy..notebook
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March 27, 2018
Apr 137:59 AM
Vertebrates: Have 1 way digestive system with long small intestine where absorption takes place (s. I. to blood.)Gastric makes reference to stomach (gastric juice)• In the intestine villi increases contact surface for absorption • A villus contains capillaries to absorb sugars, amino acids, nucleotides, vitamins, minerals and water. • They also contain a Lacteal, which is a lymph vessel that absorbs fatty acids and glycerol.
Nutrition Lesson 4 Digestive system vertebrates Anatomy..notebook
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March 27, 2018
Apr 1412:27 PM
List Glands of the D. S, their secretions enzymes and function
Gland Secretion Enzymes Function
gatric juice