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BIOL 224 > Digestive System > Flashcards

Digestive System Flashcards

1
Q

The more technical term for swallowing is

A. Gestation
B. Swallowing
C. Deglutition
D. Olfaction

A

Deglutition

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2
Q

Chemical digestion of lipids or fats begins in the

A. Stomach
B. Mouth
C. Small intestine
D. Large intestine

A

Mouth

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3
Q

The primary purpose of peristalsis is to

A. Break apart chunks of food and mix it in digestive juices
B. Propel food forward along the GI tract
C. Absorb food
D. Enable swallowing

A

Propel food forward along the GI tract

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4
Q

Which of the following substrates requires an intrinsic factor for absorption?

A. Sodium
B. Vitamin B12
C. Glucose
D. All of the above

A

Vitamin B12

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5
Q

Which of the following nerves innervates the muscles of mastication?
A. The chorda tympani branch of the facial nerve
B. The mandibular branch of the trigeminal nerve
C. The accessory branch glossopharyngeal nerve
D. The recurrent laryngeal nerve of the vagus nerve

A

The mandibular branch of the trigeminal nerve

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6
Q

All of the following are muscles of mastication. Which of the following muscles is involved in opening or lowering the jaw?

A. Massester
B. Temporalis
C. Medial pterygoid
D. Lateral pterygoid

A

Lateral pterygoid

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7
Q

Which of the following statements is most correct for deglutition (swallowing)?

A. The soft palate is pulled upward
B. The hyoid bone and the larynx is pulled anteriorly and superiorly
C. The vocal cords are addicted
D. All of the above
E. None of the above

A

All of the above

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8
Q

Which of the following organs has a mucosal layer composed of stratified squamous non-keratinized epithelium that resists abrasion?

A. Esophagus
B. Stomach
C. Small intestine
D. Large intestine

A

Esophagus

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9
Q

After leaving the stomach, chyme enters the

A. Esophagus
B. Duodenum
C. Ascending colon
D. ileum

A

Duodenum

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10
Q

Anatomically, the stomach is divided into all of the following regions EXCEPT the

A. Fundus
B. Pyloric
C. Cardiac
D. Manubrium

A

Manubrium

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11
Q

Cholecystokinin

A. Stimulate the release of gastrin
B. Initiate the constriction of the sphincter of Odi
C. inhibit gallbladder contraction
D. all of the above
E. none of the above

A

None of the above

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12
Q

All of the following functions are associated with the liver EXCEPT

A. Bile synthesis
B. Storage for glucose
C. Synthesis of albumin
D. Lipid digestion and absorption

A

Lipid digestion and absorption

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13
Q

Which of the following acts as a lubricant allowing food to pass through the alimentary canal?

A. Pepsin
B. Bile
C. Pancreatic juice
D. Mucous

A

Mucous

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14
Q

All of the following statements are correct for the pancreas EXCEPT

A. it is an endocrine gland
B. it is an exocrine gland
C. involved in glucose homeostasis
D. all of the above
E. none of the above

A

none of the above

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15
Q

All of the following statements are correct for the digestive system EXCEPT

A. colorectal cancer results from a high protein, high fat, low fiber diet
B. the most common cause for pancreatitis in the US is excessive alcohol consumption
C. lactose intolerance is more common in Asian than Caucasian
D. all of the above
E. none of the above

A

none of the above

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16
Q

Which of the following statements is most correct for the gallbladder?

A. stores bile
B. site for bile synthesizes
C. stimulated by secretin
D. involved in fat digestion in the stomach

A

stores bile

17
Q

The digestive system processes food into ____ that can be absorbed and utilized by the cells.

A. enzymes
B. packages
C. fluids
D. molecules

A

molecules

18
Q

Bile is synthesized and secreted by the

A. parietal cells
B. stomach
C. hepatic cells
D. gallbladder

A

hepatic cells

19
Q

All of the following statements are correct for the digestive system EXCEPT

A. the stomach functions in mechanical and chemical digestion
B. the small intestine functions in nutrient digestion and absorption
C. the large intestine functions include water and electrolytes absorption
D. all of the above
E. none of the above

A

none of the above

20
Q

Which of the following statements is most correct for gastric secretion?

A. the cephalic phase involves the site, sounds, or thought of food
B. the gastric phase is initiated when food enters the stomach
C. the intestinal phase is initiated when food enters the duodenum
D. all of the above

A

all of the above

BIOL 224 (1 decks)

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