In the expression "Let your fingers do the walking," which of the following anatomical terms could be substituted for "fingers?"
A. tarsals
B. manuals
C. digits
D. carpals
E. metatarsals
C
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Glands, such as the thyroid, that secrete their products directly into the blood rather than through ducts are classified as ________.
A) exocrine B) endocrine C) sebaceous D) ceruminous
The figure illustrates the autonomic reflexes and the heart. What does "D" represent?
A. sympathetic nerve B. increase in blood pressure detected by carotid baroreceptors C. glossopharyngeal nerve D. decrease in blood pressure detected by carotid baroreceptors E. vagus nerve
The adrenal medulla secretes ______ under conditions of stress.
A) norepinephrine B) epinephrine C) both of the above
When elements found in column VIA of the periodic table become ions, they usually have a charge of
A. -2.?B. -1.?C. +1.?D. +2.?E. +3.