The drug atropine influences the autonomic nervous system by
A. blocking the action of norepinephrine.
B. blocking the action of acetylcholine.
C. stimulating the release of acetylcholine.
D. stimulating the release of norepinephrine.
Answer: B
You might also like to view...
Stimulation of the beta receptors on heart muscle cells results in
A) the decrease in ATP production. B) increased heart rate and force of contraction. C) decreased force of contraction. D) slower heart rate. E) inhibition of the heart muscle.
Cleavage involves a series of ________ divisions and __________ in the overall size of the conceptus
A. meiotic; an increase B. meiotic; no change C. meiotic; a decrease D. mitotic; no change E. mitotic; an increase
Why do humans and other animals have two nostrils?
What will be an ideal response?
Sensible perspiration
A. is water lost through simple evaporation. B. is secreted by the sweat glands. C. is secreted by salivary glands. D. contains only water. E. is invisible on the skin.