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