Chapter 25: The Digestive System
Which of the following is not a function of saliva? cleansing the oral cavity dissolved food so you can taste it allows oral cavity to absorb nutrients from food begin chemical digestion lubricate the bolus
allows oral cavity to absorb nutrients from food
Which of the following cells secrete digestive enzymes? chief cells mucous cells parietal cells enteroendocrine cells goblet cells
chief cells
Mechanical and chemical digestion of food in the stomach produces a substance called chyme bolus mucus ghrelin vomit
chyme
Pancreatic juice is deliver to the ________________ via the pancreatic duct. sigmoid colon appendix cecum ilium duodenum
duodenum
Which gastric secretion is important in the absorption of vitamin B12 in the small intestine? hydrochloric acid intrinsic factor amalyse pepsin mucus
intrinsic factor
The mesenteries that anchor the large intestine to the posterior body wall is called the lesser omentum greater omentum mesocolon mediastinum sigmoid colon
mesocolon
Which tooth type is designed to grind and crush? canines molars incisors deciduous vampire
molars
Which phase of swallowing is the only phase under voluntary control? esophageal phase mandibular phase oral phase pharyngeal phase laryngeal phase
oral phase
The ____________ helps keep food in the mouth until it is time to swallow. epiglottis lingual frenulum uvula palatine rugae third molars
uvula
______________ are inactive proteins secreted in the digestive tract and must be activated into enzymes. gastric juice zymogens serotonins histamines peptides
zymogens