Stimulation of nociceptive receptors within the trigeminal nerve might produce a perception of
A) intensely sweet.
B) intensely sour.
C) quite salty.
D) peppery hot.
E) decidedly bitter.
Answer: D
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Defensins and lysosomes are both part of ________ immunity and function as ___________
A. adaptive; physical barriers to pathogen entry B. adaptive; attackers of pathogenic cells C. innate; physical barriers to pathogen entry D. innate; attackers of pathogenic cells
Pulsating exophthalmos is associated with:
A) tear of the lacrimal artery. B) tear of the inferior ophthalmic vein. C) arteriovenous fistula within the cavernous sinus. D) rupture of the pterygoid venous plexus. E) section of the oculomotor nerve.
A construction worker was injured when a metal rod penetrated his abdominal wall inferior to his umbilicus and in the hypogastric region. The rod passed through to the lumbar region. Which of the following structures was most likely damaged?
A. Stomach B. Kidney C. Urinary bladder D. Liver
Proteins do not pass through plasma membranes because
A. they are very large molecules. B. the membrane is made of protein. C. they cause emulsification. D. they contain nitrogen.