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Chap 14 - Digestive System and Nutrition flashcards
The hepatic portal vein empties into the inferior vena cava. True or False? False People who are obese lack self control and should just not eat as much. True or False? False You can eliminate all fat from your diet without suffering any harmful effects. True or False? False Soft drinks are a good source of carbohydrates for the body. True or False? False The body is unable to make any amino acids so all 20 of them must be acquired from a balanced diet. True or False? False Crohn's disease is considered an autoimmune disease. True or False? True Sodium is considered one of the major minerals needed in the human diet. True or False? True A person can fulfill all of their protein requirements without consuming any animal products. True or False? True Which structure in Figure 14.1 stores food, has limited digestion, and secretes HCl? ( ) 1 (liver) ( ) 2 (stomach) ( ) 3 (esophagus) ( ) 4 (appendix) ( ) 5 (small intestine) 2 (stomach) In Figure 14.1, which structure is the primary site for digestion and absorption of food? ( ) 1 (liver) ( ) 2 (stomach) ( ) 3 (esophagus) ( ) 4 (appendix) ( ) 5 (small intestine) 5 (small intestine) In Figure 14.1, which structure is the liver? ( ) 1 (liver) ( ) 2 (stomach) ( ) 3 (esophagus) ( ) 4 (appendix) ( ) 5 (small intestine) 1 Inflammation of the gums is called gingivitis In what order does a dentist drill through tooth layers? enamel →dentin →pulp Starting from the inside of the esophagus and going to the outside, the layers of the digestive tract in sequence are mucosa → submucosa → smooth muscle → serosa. In the processing of food through the digestive tract, what is the correct order? bolus → chyme → feces In humans, what is the sequence of fat digestion from the lumen of the small intestine to the bloodstream? lipids → fatty acid and glycerol (converted in EPITHELIAL CELL) → LACTEAL → bloodstream In humans, digestion of starch begins in the mouth Food is prevented from entering the trachea by the epiglottis Which of these organs has contact with food for the least amount of time and does not participate in digestion? ( ) mouth ( ) esophagus ( ) stomach ( ) small intestine ( ) large intestine esophagus The main function of the esophagus is to transport food from the mouth to the stomach. Which organ of the digestive tract functions to store food, kill bacteria, and partially digest proteins? stomach A correct function of the human stomach is storage of food and mixing with digestive fluids to allow chemical digestion. The pH of the stomach is usually about 2.0 Secretin, gastrin, and CCK in humans are all hormones that control digestive secretions. The release of secretin is stimulated by the action of acid on the wall of the duodenum. The digestive juices found in the stomach include ( ) trypsin and bile. ( ) trypsin and pepsin. ( ) bile and hydrochloric acid. ( ) amylase and trypsin. ( ) pepsin and hydrochloric acid. pepsin and hydrochloric acid. At body temperature, which of these combinations is most likely to result in digestion? ( ) protein, water, pepsin ( ) protein, HCl, pepsin ( ) protein, bile, pepsin ( ) protein, sodium bicarbonate, pepsin ( ) pepsin, HCl, sodium bicarbonate protein, HCl, pepsin At body temperature, which of these combinations is most likely to result in digestion? ( ) fat, bile salts, sodium bicarbonate, lipase ( ) fat, bile salts, sodium bicarbonate, pepsin ( ) fat, HCl, maltase ( ) fat, bile salts, HCl, sodium bicarbonate, and trypsin ( ) fat, sodium bicarbonate, lipase fat, bile salts, sodium bicarbonate, lipase (F, BS, SB, L) What pH is required in order for protein to be digested into peptides with the use of pepsin? 3.0 Which layer of the intestinal wall will first absorb nutrients from the lumen? mucosa |
