Seventy percent of all sensory receptors are located in the ________.
A) eye
B) ears
C) skin
D) nose
A) eye
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Endocrine secretions from which of the following adrenal regions would increase levels of sodium ions retained at the kidney?
a. adrenal medulla b. zona fasciculata c. zona reticularis d. zona glomerulosa
________ glands (such as tear glands) have vesicles that release their secretion via exocytosis. ________ glands (such as oil-producing glands) secrete a mixture of disintegrated cells and their products.
A. Endocrine; Exocrine B. Exocrine; Apocrine C. Mucous; Cutaneous D. Mucous; Serous E. Merocrine; Holocrine
Compared to at rest in the upright position, pulmonary blood flow when upright during exercise in normal individuals is:
A. distributed more to the bottom of the lung than to the top B. distributed more to the top of the lung than to the bottom C. distributed essentially evenly between the top and the bottom of the lung D. is too highly variable to be determined
Which statement is false about MHC and APC?
A. Epitopes are displayed on an MHC protein on the surface of the APC. B. MHC protein displays what is self and what is foreign. C. MHCs process antigens and APCs present what was processed. D. If the epitope in the MHC is foreign a specific immune response is initiated.