The norepinephrine released by terminal knobs
A) affects its targets for only a few seconds.
B) may be inactivated by enzymes in the target tissues only.
C) is all inactivated by enzymes in the bloodstream.
D) provides for localized effects of suprarenal stimulation.
E) None of the answers are correct.
A) affects its targets for only a few seconds.
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Semen is
A. produced solely by the testis. B. a vaginal secretion needed to activate sperm. C. sperm cells plus the secretions of accessory glands. D. responsible for engorgement of erectile tissue of the penis. E. is composed only of sperm cells.
Glomerulonephritis is inflammation of the
A) collecting ducts. B) peritubular capillaries. C) glomerular capillaries. D) glomerular capsule.
The somatic nervous system and the autonomic nervous system are part of both the peripheral nervous system and the central nervous system.
Answer the following statement true (T) or false (F)
Neurulation is an example of
A. induction. B. organogenesis. C. blastulation. D. compaction. E. gastrulation.