Concerning the abdominopelvic regions, the ________ regions lie directly superior to the lumbar regions.
A. iliac
B. epigastric
C. umbilical
D. hypochondriac
E. hypogastric
Answer: D
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All of the following may be functions of melatonin except that it
A) can act as an antioxidant. B) protects against free-radicals. C) may maintain circadian rhythms. D) can act as an insulin synergist. E) may influence sexual maturation.
In olfactory receptor cells, signal transduction cascades often follow this order:
A) Receptor binding ? G-protein activation ? cAMP ? cell depolarization B) Cell depolarization ? increased intracellular Ca2+? adenylatecyclase activation C) Receptor binding ? opening ion channels ? G-protein activation ? cell depolatization D) Cell depolarization ? adenylatecyclase ? G-protein activation ? conformational change
Where are the cell bodies of almost all motor neurons situated within the spinal cord?
a. cauda equina b. cervical ganglia c. dorsal horn d. lateral horn e. ventral horn
What controls the release of corticoids from the adrenal cortex?
A. ACTH from the anterior pituitary B. Higher brain centers C. CRH from the hypothalamus D. All of the choices are correct.