Matching
A) C
B) D
C) B
D) A
E) E
17) Produces enzymes that break down all categories of foodstuffs.
18) Increases surface area for absorption via villi and microvilli.
19) Bacteria process undigested chyme from the small intestine.
20) Only digestive structure with three muscle layers.
21) Receives blood via the hepatic portal system.
22) Contains the brush border enzymes that complete digestion of carbohydrates and proteins.
23) Main function is to filter and process the nutrient-rich blood delivered to it.
24) Produces intrinsic factor.
25) Produces a mucoid barrier to prevent self-digestion.
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Question 2) Matching
A) Peristalsis
B) Digestion
C) Hydrolysis
D) Absorption
13) Wavelike smooth muscle contractions that move foodstuffs through the alimentary tube.
14) Chemical or mechanical process of breaking down foodstuffs into simpler units.
15) Enzymatic breakdown of any type of food molecule.
16) Process by which simpler chemical units pass through the lumen of the gastrointestinal tract into the blood or lymph.
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Question 3) Choose the incorrect statement regarding bile.
A) Bile functions to emulsify fats.
B) Bile contains enzymes for digestion.
C) Bile functions to carry bilirubin formed from breakdown of worn-out RBCs.
D) Bile is both an excretory product and a digestive secretion.
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Question 4) The pharyngeal-esophageal phase of swallowing is involuntary and is controlled by the swallowing center in the thalamus and lower pons.
Indicate whether the statement is true or false
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Question 5) The capillaries that nourish the epithelium and absorb digested nutrients lie in the ________.
A) adventitia
B) lamina propria
C) submucosa
D) serosa
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Question 6) Stellate macrophages are found in the liver and are responsible for removing bacteria and worn-out cells.
Indicate whether the statement is true or false
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Question 7) What part of the tooth bears the force and resists the friction of chewing?
A) crown
B) enamel
C) cementum
D) pulp
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Question 8) Some of the microbes that often invade other organs of the body are rarely found in the stomach. The reason for this is the presence of HCl.
Indicate whether the statement is true or false
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Question 9) Which of the following is not a factor that helps create the stomach mucosal barrier?
A) replacing of damaged epithelial mucosa cells
B) thick coating of bicarbonate-rich mucus
C) secretion of pepsinogen
D) tight junctions of epithelial mucosa cells
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Question 10) Gastric accommodation is an example of smooth muscle plasticity.
Indicate whether the statement is true or false
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