A&P 2 Lesson 11

STUDY LAB ACTIVITIES IN LESSON 11

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The large intestine functions to: a. digest fat b. absorb water c. store food d. is described by all of these characteristics

Absorb water

An organ the helps break down food but is not part of the tube through which the foodstuffs pass is: a. chemically digesting organ b. accessory digestive organ c. Alimentary canal organ d. diffuse ingestive structure e. organ of mastication

Accessory digestive organ

The oral cavity and its anatomical features are responsible for: a. ingestion of food b. mechanical digestion c. swallowing d. All of the choices are correct

All of the choices are correct

What is the function of the small intestine? a. digests food b. absorbs nutrients c. transports undigested food to the large intestine d. All of the choices are functions

All of the choices are functions

Which of the following is NOT secreted by the stomach to aid in digestion? a. Hydrochloric acid b. Bile c. Regulatory hormones d. Pepsinogen

Bile

The material that leaves the mouth and enters the pharynx is called: a. chyme b. chyle c. bolus d. rugae

Bolus

Which type of gastric gland secretes pepsinogen? a. chief b. mucus c. parietal d. enteroendocrine

Chief

Pepsinogen is produced by ______________ and is activated by _______________. a. chief cells; carbonic anhydrase (CAH) secreted by parietal cells b. chief cells; hydrochloric acid (HCl) secreted by parietal cells c. Parietal cells; hydrochloric acid (HCl) secreted by chief cells d. parietal cells; carbonic anhydrase (CAH) secreted by chief cells e. enteroendocrine cells; carbonic anhydrase (CAH) secreted by parietal cells

Chief cells; hydrochloric acid (HCl) secreted by parietal cells

Pancreatic enzymes are secreted in response to the hormone: a. insulin b. cholecystokinin (CCK) c. secretin d. glucagon e. gastrin

Cholecystokinin (CCK)

Food leaving the stomach (and entering the small intestine) is called: a. bolus b. rugae c. chyme d. peristalsis

Chyme

Bile from the liver and digestive juices from the pancreas enter which section of the small intestine? a. ileum b. Jejunum c. Duodenum d. Cecum

Duodenum

Which is the first portion of the small intestine? a. duodenum b. jejunum c. ileum

Duodenum

From superficial to deep, these are the structures found in a typical tooth. a. cementum, root canal, enamel b. enamel, root canal, dentin c. dentin, enamel, cementum d. enamel, dentin, pulp e. Crown, enamel, dentin

Enamel, dentin, pulp

The _______ regulates digestive tract motility, secretion, and blood flow, and its neurons are found in the: a. autonomic nervous system; serosa b. central nervous system, muscularis externa and muscularis mucosae c. enteric nervous system; submucosa and muscularis externa d. visceral sensory division; muscularis externa and submucosa e. visceral motor division; mucosa and submucosa

Enteric nervous system; submucosa and muscularis externa

The pharynx transports food into the: a. stomach b. esophagus c. layrnx d. gallbladder

Esophagus

(T/F) The pancreas is part of the alimentary canal

False

(T/F) The small intestine begins with the duodenum, which is its longest segment

False

Which of the following is NOT a region of the stomach? a. Fundic region (fundus) b. cardiac region c. hepatic region d. pyloric region (pyloris)

Hepatic region

Which of the following is NOT a region of the stomach? a. fundic region (fundus) b. cardiac region c. hepatic region d. pyloric region (pyloris)

Hepatic region

Which of the following is NOT a part of the large intestine? a. ileum b. cecum c. rectum d. colon

Ileum

________, which is secreted by ________ cells, is necessary for Vitamin B12 absorption. a. Intrinsic factor; parietal b. Bile salts; chief c. Lecithin; hepatic d. Hydrochloric acid; parietal e. Enterokinase; mucous

Intrinsic factor; parietal

Peristalsis: a. is under voluntary control b. involves the opening and closing of the muscular sphincters c. involves the back-and-forth movement for mixing d. is the alternating contraction of muscle layers in the GI tract wall that propels materials through the tract e. All choices are true

Is the alternating contraction of muscle layers in the GI tract wall that propels materials through the tract

What is the major portion of the small intestine? a. jejunum b. ileum c. Duodenum

Jejunum

The functions of HCl (hydrochloric acid) in the stomach include: a. kills bacteria b. breaks down connective tissue of meat c. Activates pepsin from pepsinogen d. All of the choices are correct

Kills bacteria

Which organ is NOT part of the gastrointestinal tract? a. Esophagus b. Large Intestine c. Stomach d. Oral Cavity e. Liver

Liver

The serous membrane that suspends the stomach and intestines from the abdominal wall are called: a. mesenteries b. mucosae c. submucosae d. muscularis mucosae e. muscularis externa

Mesenteries

Which is NOT a function of the digestive system? a. Absorption b. Ingestion c. Secretion d. Micturition e. Elimination

Micturition

Digestion begins in the: a. stomach b. small intestine c. mouth d. esophagus

Mouth

The function of the uvula is to prevent food from entering the: a. larynx b. pharynx c. nasal cavity d. mouth

Nasal cavity

Which region of the pharynx serves only the respiratory system? a. laryngopharynx b. nasopharynx c. oropharynx

Nasopharynx

What type of epithelium lines the majority of the oral cavity? a. Keratinized stratified squamous b. Nonkeratinized stratified squamous c. areolar connective tissue d. simple columnar epithelium e. simple squamous epithelium

Nonkeratinized stratified squamous

Food is digested so that: a. it can be swallowed b. in can be converted to waste c. nutrients are small enough to enter the cell d. For all of these reasons

Nutrients are small enough to enter the cell

The initial site of both mechanical and chemical digestion is the: a. stomach b. small intestine c. oral cavity d. pharynx

Oral cavity

Which bones form the hard palate? a. Palatine bones b. Maxillae and inferior nasal conchae c. Ethmoid and sphenoid bones d. Palatine bones and maxillae e. Maxillae and sphenoid

Palatine bones and maxillae

Hydrochloric acid (HCl) is secreted by __________ cells. a. mucous b. regenerative c. parietal d. chief e. enteroendocrine

Parietal

Which gastric gland cell type secretes HCl (hydrochloric acid) a. chief b. mucus c. parietal d. enteroendocrine

Parietal

Which cell type is responsible for HCl production in the stomach? a. G cells b. Chief cells c. Alpha cells d. Parietal cells

Parietal cells

What mechanical process moves the bolus through the esophagus? a. peristalsis b. swallowing c. segmentation d. mass movement

Peristalsis

The serous membrane of the abdominal cavity is the: a. pericardium b. pleura c. peritoneum d. serosa

Peritoneum

Which organ is not considered to be an accessory digestive organ? a. Tongue b. Teeth c. Pancreas d. Salivary glands e. Pharynx

Pharynx

Which of the following is NOT a function of the digestive system? a. Waste elimination b. Production of ATP c. Mechanical digestion d. Nutrient absorption

Production of ATP

Deep folds in the wall of the stomach called ___________ help it to expand to hold food. a. rugae b. plicae c. sphincter d. gastric pits

Rugae

During digestion, the major site of nutrient absorption is the: a. stomach b. Pancreas c. small intestine d. Large intestine

Small intestine

The swallowing center is located in: a. the mouth b. the oropharynx c. the esophagus d. the medulla oblongata e. the enteric nervous system

The medulla oblongata

Acid reflux into the esophagus ("heartburn") a. pharyngeal constrictors b. the upper esophageal sphincter c. the lower esophageal sphincter d. esophageal glands e. pharyngeal and buccal sphincters

The upper esophageal sphincter

(T/F) Absorption of many nutrients starts in the stomach

True

(T/F) Both chemical and mechanical digestion start in the mouth and continue in the stomach

True

(T/F) Both pancreated juice and bile are secreted into the duodenum

True

(T/F) Most fat is digested by pancreatic lipase

True

(T/F) The esophagus is part of the gastrointestinal tract

True

(T/F) The liver is the body's largest gland

True

An open sore in the stomach wall due mainly to the action of a bacterium, Helicobacter pylori, is: a. pernicious anemia b. heartburn c. hiatal hernia d. ulcer

Ulcer

On average, children have ___________ deciduous teeth, whereas adults have _________ permanent teeth. a. 20; 32 b. 16; 20 c. 28; 20 d. 32; 20 e. 32; 32

20;32