ANT chapter 24 quiz

2, 4, 3, 1

Arrange the following events in the correct order: (1) absorption of lipids (2) emulsification (3) micelle formation (4) digestion of lipids A. 1, 2, 3, 4 B. 2, 4, 1, 3 C. 2, 4, 3, 1 D. 3, 4, 2, 1 E. 4, 1, 2, 3

3, 1, 4, 2

Arrange the following in proper sequence: (1) digestion (2) elimination (3) ingestion (4) absorption Select one: A. 3, 1, 4, 2 B. 3, 4, 1, 2 C. 1, 4, 3, 2 D. 3, 4, 2, 1 E. 4, 1, 2, 3

1, 4, 2, 3

Arrange the following structures in order from the small intestine to the rectum. (1) ascending colon (2) descending colon (3) sigmoid colon (4) transverse colon Select one: A. 2, 3, 1, 4 B. 1, 4, 3, 2 C. 2, 4, 1, 3 D. 1, 2, 3, 4 E. 1, 4, 2, 3

emulsifies fats in the small intestine.

Bile Select one: A. digests proteins in the small intestine. B. activates trypsin in the small intestine. C. is made by the gallbladder and stored by the liver. D. emulsifies fats in the small intestine. E. activates the pancreas.

liver

Bile is produced by cells of the A. hepatopancreatic ampulla. B. gallbladder. C. pancreas. D. duodenum. E. liver.

absorption of food

Diffusion and active transport are likely to be important in Select one: A. propulsion of food through the digestive tract. B. elimination of undigested food. C. mastication of food. D. absorption of food. E. mixing of food.

All of these are found in feces

Feces consist of Select one: A. water. B. sloughed-off epithelial cells. C. undigestible food. D. bacteria. E. All of these are found in feces.

All of these are functions of the liver.

Functions of the liver include A. bile production. B. interconversion of nutrients. C. detoxification of harmful chemicals. D. production of many blood proteins. E. All of these are functions of the liver.

All of these are functions of the liver

Functions of the liver include Select one: A. bile production. B. interconversion of nutrients. C. detoxification of harmful chemicals. D. production of many blood proteins. E. All of these are functions of the liver.

facilitates the absorption of vitamin B12.

Intrinsic factor Select one: A. increases gastric motility. B. causes the release of stomach acid. C. stimulates the synthesis of DNA. D. facilitates the absorption of vitamin B12. E. protects the stomach lining from the effects of stomach acid.

are quickly dissolved and absorbed

Lipid-soluble drugs placed under the tongue Select one: A. can be detected by taste buds. B. are not readily absorbed. C. are then easy to chew. D. are more easily swallowed. E. are quickly dissolved and absorbed.

increases the surface area of food particles.

Mastication A. occurs in both the mouth and stomach. B. increases the surface area of food particles. C. decreases the surface area of food particles. D. decreases the efficiency of digestion. E. is never under voluntary control.

hepatic portal vein

Nutrient-rich blood from the digestive tract comes to the liver by way of the A. inferior vena cava. B. celiac trunk. C. hepatic portal vein. D. hepatic vein. E. hepatic artery.

convert chyme to feces.

One of the major functions of the large intestine is to A. regulate the release of bile. B. convert chyme to feces. C. absorb nutrients. D. break down hemoglobin to release bilirubin. E. produce vitamin C.

moistens food and begins starch digestion in the mouth.

Saliva A. moistens food and begins starch digestion in the mouth. B. does not prevent bacterial infection in the mouth. C. is produced only when there is food in the mouth. D. increases ulceration in the mouth. E. is responsible for peristalsis in the mouth.

mass movements.

Strong peristaltic contractions in the large intestine are called A. mass movements. B. churning contractions. C. rectal propulsions. D. segmental contractions. E. defecation.

are distributed so that there is one canine tooth in each half jaw.

Teeth in adults A. are replaced by osteoblast activity if they are extracted. B. are distributed so that there is one canine tooth in each half jaw. C. are composed of living cells called enamel cells. D. are all of the same type - molars. E. do not play a role in speech

is stimulated by distention of the rectum

The defecation reflex A. constricts the internal anal sphincter. B. lasts several hours. C. is stimulated by distention of the rectum. D. inhibits further peristalsis in the rectum and lower colon. E. None of these choices is correct.

has upper and lower sphincters to regulate movement of food.

The esophagus A. produces two enzymes that digest proteins. B. has cartilage in its walls to keep it from collapsing. C. extends from the fauces to the stomach. D. has thin walls of connective tissue. E. has upper and lower sphincters to regulate movement of food.

stores bile.

The gallbladder Select one: A. produces secretin. B. is attached to the pancreas. C. breaks down red blood cells. D. produces bile. E. stores bile.

is controlled by the entrance of acidic chyme into the duodenum

The intestinal phase of gastric secretion A. is controlled by the entrance of alkaline material into the small intestines. B. is controlled by the entrance of acidic chyme into the duodenum. C. leads to increased gastric secretion if duodenal pH falls below 2. D. only stimulates gastric secretion. E. will decrease gastric secretion when gastrin is released by the duodenum.

absorption

The movement of molecules out of the digestive tract into circulation or the lymphatic system is Select one: A. absorption. B. peristalsis. C. chemical digestion. D. secretion.

composed of a layer of circular smooth muscle fibers and a layer of longitudinal smooth muscle fibers.

The muscularis layer in the wall of the digestive tract is A. in direct contact with the food that is consumed. B. the layer of the digestive tract wall that contains capillaries. C. connective tissue and the peritoneum. D. skeletal muscle throughout the tract, especially in the large intestine. E. composed of a layer of circular smooth muscle fibers and a layer of longitudinal smooth muscle fibers.

has boundaries that include the lips, palate and cheeks

The oral cavity Select one: A. is lined with cuboidal epithelium. B. contains the parotid salivary glands. C. has boundaries that include the lips, palate and cheeks. D. opens into the nasopharynx. E. directly connects with the esophagus.

oropharynx

The portion of the digestive tract that receives food directly from the oral cavity is the Select one: A. laryngopharynx. B. larynx. C. oropharynx. D. esophagus. E. nasopharynx.

parotid glands.

The salivary glands located just anterior to the ear are the A. submandibular glands. B. parotid glands. C. labial glands. D. sublingual glands. E. buccal glands.

plays a major role in swallowing

The tongue Select one: A. is attached to the hard palate. B. plays a major role in swallowing. C. contains a lot of connective and lymphatic tissues. D. secretes saliva. E. functions in deglutition apnea.

detect changes in chemical composition of digestive tract contents and detect stretch of the digestive tract wall

What is the function of enteric sensory neurons? Select one: A. detect stretch of the digestive tract wall B. stimulate or inhibit glandular secretion in the digestive tract C. detect changes in chemical composition of digestive tract contents and detect stretch of the digestive tract wall D. detect changes in chemical composition of digestive tract contents E. stimulate or inhibit smooth muscle contraction in the digestive tract

store and concentrate bile

What is the function of the gallbladder? Select one: A. store and concentrate bile B. produce bile C. store bicarbonate D. add pigment to bile

mixing of intestinal contents

What is the purpose of segmental contractions of the small intestine? Select one: A. stretching the intestinal wall B. propelling the chyme forward C. mixing of intestinal contents D. moving intestinal contents into the colon

ileum

What portion of the small intestine is most distal from the pylorus of the stomach? Select one: A. hepatopancreatic ampulla B. jejunum C. duodenum D. common bile duct E. ileum

esophagus

What structure moves food from the pharynx to the stomach? Select one: A. laryngopharynx B. epiglottis C. larynx D. esophagus

the jejunum and duodenum

Where does the majority of nutrient absorption occur? Select one: A. the duodenum and ileum B. the stomach and duodenum C. the jejunum and duodenum D. the ileum and jejunum

oral cavity, stomach, small intestine, large intestine

Which is the correct order of the regions of the digestive tract from superior to inferior? A. oral cavity, stomach, small intestine, large intestine B. stomach, esophagus, large intestine, small intestine C. anus, large intestine, stomach, esophagus D. pharynx, esophagus, large intestine, small intestine

pepsinogen and intrinsic factor

Which of the following are secreted by the stomach? Select one: A. pepsinogen and intrinsic factor B. amylase and lipase C. trypsin and amylase D. bicarbonate and secretin E. bile and lipase

proper environment for functioning of pepsin

Which of the following events occurs because of the low pH of the stomach? A. enhanced carbohydrate digestion B. protein synthesis C. activation of salivary amylase D. proper environment for functioning of pepsin E. lipid digestion

mastication of food

Which of the following is NOT a function of the small intestine? A. complete digestion of food B. mastication of food C. mixing by segmental contractions D. absorption of nutrients

synthesize bile

Which of the following is a function of the hepatocytes? Select one: A. regulate pH B. produce hydrochloric acid C. produce digestive enzymes D. synthesize bile E. synthesize hormones

elimination of undigested food

Which of the following is a function performed by the digestive system? A. elimination of undigested food B. regulation of blood pH C. integration and coordination of other systems D. cellular respiration E. food selection

liver

Which of the following is an accessory organ of the digestive tract? Select one: A. stomach B. pharynx C. large intestine D. liver

amino acids

Which of the following is an end product of protein digestion? A. micelles B. amino acids C. nucleic acids D. LDL molecules E. glucose

LDL

Which of the following lipoproteins contains the highest percentage of cholesterol? A. VLDL B. CDL C. HDL D. LDL E. chylomicron

All of these organs are retroperitoneal

Which of the following organs is retroperitoneal? A. pancreas B. duodenum C. descending colon D. ascending colon E. All of these organs are retroperitoneal

The pancreatic acinar cells secrete digestive enzymes.

Which of the following statements regarding the pancreas is true? Select one: A. The head of the pancreas lies in the curvature of the ileum. B. The pancreatic duct carries both enzymes and hormones. C. The pancreas assists the stomach in the absorption of digested food. D. The pancreas digests sugar. E. The pancreatic acinar cells secrete digestive enzymes.

pancreas

Which of the following structures has both endocrine and exocrine tissue? A. liver B. gallbladder C. pancreas D. spleen E. colon

nasopharynx

Which part of the pharynx is NOT involved with food transport? A. laryngopharynx B. nasopharynx C. oropharynx D. All the the choices are involved with food transport

The stomach wall is protected by large amounts of mucus.

Why doesn't the stomach digest itself? A. The stomach is protected by HCl. B. The stomach wall lacks proteins so enzymes won't attack it. C. The stomach wall is protected by large amounts of mucus. D. The stomach lining is too tough to be digested. E. The digestive enzymes in the stomach aren't efficient enough.