When your nasal passages are blocked due to a heavy cold, food seems to lose its flavor. For example, pizza tastes like salt. Explain why this is so
What will be an ideal response?
Actually, upon testing, persons with severe colds who say that they've lost their sense of taste have usually been found to have completely normal taste sensations. Recall that the primary taste sensations are sweet, bitter, salty, and sour. Much of what we think of as taste, therefore, is actually smell. When a person has a cold, the nasal passages are blocked and chemoreceptors of the nasal epithelium are similarly blocked, depressing the sense of smell.
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Which is not a function of the blood-brain barrier?
A. It protects brain neurons from exposure to abnormal hormone levels. B. It protects brain neurons from exposure to abnormal ion levels. C. It prevents brain neurons from being exposed to waste products in the blood. D. It prevents nicotine and alcohol from entering brain interstitial fluid. E. It prevents brain neurons from being exposed to drugs.
In biological systems, radiant heat exchange occurs through electromagnetic radiation in the __________ range
Fill in the blank with the correct word.
Which statement about hypophysiotropic hormones is/are correct?
a. Each hormone influences only one anterior pituitary hormone. b. All of them stimulate the release of anterior pituitary hormones. c. They are also produced outside of the hypothalamus, where they serve different functions. d. They are secreted into the general circulation. e. None of the above
In adults, yellow marrow is located ________.
in the medullary cavity of long bones primarily in flat bones in the central canals of osteons in the epiphyseal plates of long bones