The surface of the tongue is covered with ________ stratified squamous epithelium, and has bumps called ________, where many taste buds can be found.
A. nonkeratinized; lingual papillae
B. nonkeratinized; tonsils
C. nonkeratinized; vallate papillae
D. keratinized; lingual papillae
E. keratinized; lingual frenulum
Answer: A
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Gastric pits are
A) ridges in the body of the stomach. B) involved in absorption of liquids from the stomach. C) openings into gastric glands. D) acid scars in the esophagus. E) hollows where proteins are stored.
Which is not a reason the stomach is acidic?
A) Kills microorganisms. B) Emulsification of lipids. C) Denatures proteins. D) Helps break down plant cell walls and connective tissue in meat. E) Activates pepsin.
The pterygoid spines and optic canals are features of the _____ bone
A. ethmoid B. temporal C. sphenoid D. occipital E. frontal
When blood pH begins to rise, the respiratory control centers in the brain are ________
A) accelerated B) depressed C) not effected D) shut off E) controlled by the kidneys