Data

Copy and paste the text below. It is read-only. Select All

Ingestion digestion absorption elimination of waste What are the four main functions of the digestive system? Mechanical chemical Name the two types of digestion. the mouth Where does digestion begin? mastication What is another name for chewing? Soft palate What prevents food from entering the nasal cavity while swallowing? epiglottis Name the structure that prevents food from entering the respiratory system. bolus Once food has been swallowed, the food mass is called ____________________. peristalsis What is the term for the involuntary wavelike contractions that propel the bolus to the stomach? Stomach folds expand stomach What are rugae? What are their functions? Hydrochloric acid What do stomach cells secrete? Chyme What is the new name for the bolus after it has been mixed with stomach secretions? Small intestine What is the major site of nutrient absorption? Duodenum Jejunum Ileum Name the three parts of the small intestine, from proximal to distal. Bile from liver and gallbladder What digestive aids enter the duodenum? Liver and gallbladder Where do the digestive aids that enter the duodenum originate? Through the lumen of the small intestine How are nutrients absorbed? Large intestine What is the destination of the chyme not absorbed in the small intestine? Cecum ascending colon transverse colon descending colon sigmoid colon, rectum anal canal List the sequence of structures the chyme passes through as it becomes feces. Salts water What has been absorbed from the chyme as it passes through the colon? Rectum Where are the feces stored?