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| 1 | |
The function(s) of the digestive system is (are) ______. |
| | A) | to ingest food |
| | B) | to digest food into small nutrients so that the molecules that can pass through membranes |
| | C) | to absorb nutrient molecules |
| | D) | to eliminate indigestible remains |
| | E) | All of the above. |
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| 2 | |
The following is not considered an accessory organ of the digestive system. |
| | A) | liver |
| | B) | salivary glands |
| | C) | stomach |
| | D) | pancreas |
| | E) | gall bladder |
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| 3 | |
Children have __ deciduous teeth and adults have ___ permanent teeth. |
| | A) | 15, 30 |
| | B) | 24, 36 |
| | C) | 20, 32 |
| | D) | 32, 36 |
| | E) | 18, 32 |
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| 4 | |
The folds in the stomach are called __________. |
| | A) | crypts |
| | B) | lumens |
| | C) | polyps |
| | D) | rugae |
| | E) | diverticula |
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| 5 | |
The energy source preferred by cells is ____. |
| | A) | glucose |
| | B) | protein |
| | C) | fat |
| | D) | lipids |
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| 6 | |
The ________ is a worm-shaped structure projecting from the right side of the large intestines. |
| | A) | cecum |
| | B) | appendix |
| | C) | duodenum |
| | D) | colon |
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| 7 | |
The layers of the gastrointestinal tract wall from the inside in order are: |
| | A) | submucosa, muscularis, mucosa, serosa |
| | B) | serosa, submucosa, muscularis, mucosa |
| | C) | mucosa, submucosa, muscularis, serosa |
| | D) | muscularis, serosa mucosa, submucosa |
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| 8 | |
The crown of a tooth is comprised of the following: |
| | A) | enamel |
| | B) | dentin |
| | C) | pulp |
| | D) | enamel, dentin, and pulp |
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| 9 | |
Swallowing is a ___________ that occurs in the ____________ and includes the closing off of the nasopharyx by the _____________. |
| | A) | voluntary action; larynx; Adam's apple |
| | B) | reflex action; pharynx; soft palate |
| | C) | voluntary action; mouth; epiglottis |
| | D) | reflex action; soft palate; glottis |
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| 10 | |
________ is the rhythmic contractions of smooth muscle that pushes food through the intestines. |
| | A) | Compaction |
| | B) | Peristalsis |
| | C) | Segmentation |
| | D) | None of the above. |
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| 11 | |
In the stomach, HCl in gastric juice ______. |
| | A) | kills bacteria |
| | B) | breaks down the connective tissue of meat |
| | C) | activates pepsin |
| | D) | All of the above. |
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| 12 | |
When food leaves the stomach it appears as a thick, soup liquid called ___. |
| | A) | bolus |
| | B) | pepsin |
| | C) | amylase |
| | D) | chyme |
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| 13 | |
The wall of the small intestine contains fingerlike projections called ______ that serve to increase surface area for absorption. |
| | A) | extensions |
| | B) | flagella |
| | C) | reticula |
| | D) | villi |
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| 14 | |
Pancreatic juice contains_________ that functions to neutralize acidic chyme from the stomach. |
| | A) | NaOH |
| | B) | Ca3 PO4 2 |
| | C) | NaHCO3 |
| | D) | NaCl |
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| 15 | |
The duodenal wall of the small intestine secretes _____. |
| | A) | secretin |
| | B) | cholecystokinin (CCK) |
| | C) | gastrin |
| | D) | secretin and cholecystokinin |
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| 16 | |
Hepatitis A is usually acquired from ___. |
| | A) | sewage-contaminated food and drinking water |
| | B) | the air |
| | C) | contact with infected blood |
| | D) | contact with body fluids |
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| 17 | |
The portions of the large intestine include the: ______. |
| | A) | colon |
| | B) | cecum |
| | C) | rectum |
| | D) | colon, cecum, rectum, and anus |
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| 18 | |
The large intestine absorbs ______. |
| | A) | alcohol and water |
| | B) | water and some vitamins |
| | C) | bacteria and vitamins |
| | D) | most nutrients important to maintaining homeostasis |
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| 19 | |
Choose the following that is recommended for reducing dietary cholesterol. |
| | A) | Avoid cheese, eggs, liver. |
| | B) | Substitute egg whites for egg yolks. |
| | C) | Include oat bran, and fruits high in fiber. |
| | D) | All of the choices are recommended. |
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| 20 | |
Vitamins often form: |
| | A) | coenzymes |
| | B) | structural proteins |
| | C) | antioxidants |
| | D) | All of the above |
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