Digestion of tissues in the stomach wall by gastric juice is usually prevented by
A) only the secretion bicarbonate.
B) a covering of mucus, exclusively.
C) intrinsic factor alone.
D) secretion of bicarbonate and a covering of mucus.
E) secretion of protein-digesting enzymes in inactive form and a covering of mucus plus intrinsic factor.
Correct Answer:
Verified
Q21: The folds of the stomach are called
A)
Q22: Hydrochloric acid in the stomach aids in
A)
Q23: "Heartburn" is caused by
A) HCl sloshing back
Q24: Mucins in saliva are used to
A) digest
Q25: Which of the following functions does the
Q27: The digestion of proteins begins in the
A)
Q28: A bolus is formed in the
A) mouth.
B)
Q30: Salivary amylase is produced by
A) parotid glands
Q31: Stomach motility
A) decreases following a heavy meal.
B)
Q42: The acid released in the stomach is
A)carbonic
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