The Digestive System Part 2 Question Preview (ID: 33749)

Dig System 2.[print questions]

The three divisions of the small intestine are
a) cephalic, gastric, and intestinal
b) duodenum, jejunum, and ileum
c) fundus, body, and pylorus
d) buccal, pharyngeal, and esophageal

Gastric pits are
a) ridges in the body of the stomach
b) pockets in the lining of the stomach that contain secretory cells
c) involved in absorption of liquids from the stomach
d) areas in the stomach where proteins are denatured

The greater omentum is
a) the major portion of the stomach
b) attached to the stomach at the lesser curvature
c) important in the digestion of fats
d) a fatty sheet that hangs like an apron over the abdominal viscera

Of the following selections, the one which is not a function of the stomach is
a) storage of ingested food
b) denaturation of protein
c) digestion of carbohydrates and fats
d) mechanical breakdown of food

During the swallowing process, the _____closes off the _____.
a) epiglottis;esophagus
b) glottis;trachea
c) epiglottis;trachea
d) glottis;esophagus

When the_____cells of the tongue are activated, they send signals to the brain via the _____nerve to interpret the flavor of food
a) papillary;trigeminal
b) gustatory;facial
c) tastebuds;facial
d) none of the above

The tongue is controlled by the _____nerve
a) abducens
b) facial
c) glossopharyngeal
d) vagus

Salivary amylase is an enzyme, produced and released by the salivary glands, that partially digests
a) carbohydrates
b) fats
c) proteins
d) all of the above

Food is initially ground and torn into smaller pieces by the teeth. Typically, adults have _____incisors, ______cuspids, ______bicuspids, and_____molars.
a) 4,2,8,6
b) 8,4,8,6
c) 8,4,8,12
d) 8,8,4,12

During swallowing, the
a) soft palate elevates
b) larynx elevates
c) epiglottis closes
d) all of the above

Secretions from the salivary glands
a) are mostly digestive enzymes
b) provide analysis before swallowing
c) help control bacterial populations in the mouth
d) all of the above

Functions of the tongue include
a) mechanical processing of food
b) manipulation of food
c) sensory analysis of food
d) all of the above

The functions of the oral cavity include
a) the initial digestion of lipids and carbohydrates
b) mechanical processing of food
c) lubrication and evaluation of material before swallowing
d) all of the above

Strong contractions of the ascending and transverse colon that move the contents of the colon toward the sigmoid colon are called
a) defecation
b) pendular movements
c) mass peristalsis
d) segmentation

In the small intestine, immediate acceleration of glandular secretions and peristaltic activity in all intestinal segments is initiated by
a) the gastroileal reflex
b) the plicae circularis
c) the sympathetic stimulation
d) the gastroenteric reflex

The bulk of chemical digestion and absorption of nutrients into the bloodstream occurs in the
a) ileum
b) jejunum
c) duodenum
d) cecum

In order for nutrients to leave the small intestine and enter the bloodstream, the nutrients must be absorbed through the
a) gastric pits
b) mucosal glands
c) villi
d) lacteals

The hormone that causes the release of insulin into the bloodstream when glucose is present in the small intestine is
a) GIP
b) gastrin
c) CCK
d) secretin

The hormones cholecystokinin and secretin are released by the
a) gallbladder
b) pancreas
c) small intestine
d) liver

The intestinal hormone that stimulates the pancreas to release a watery secretion that is
a) gastrin
b) secretin
c) cholecystokinin
d) enterocrinin

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