If a motor neuron in the body were stimulated by an electrode placed about midpoint along the length of the axon ________
A) the impulse would move to the axon terminal only, and the muscle contraction would occur
B) the impulse would spread bidirectionally
C) muscle contraction would occur
D) the impulse would move to the axon terminal only
B
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Distributing arteries
A. contain a lot of elastic tissue. B. contain a thick tunica media. C. are strong, rigid vessels. D. transport blood from arterioles to capillaries. E. do not contain smooth muscle in their walls.
What is the first event of hemostasis after the injury?
A. Vascular spasm B. Clot retraction C. Coagulation D. Platelet plug formation
Which type of chemical bond involves the sharing of valence electrons between two atoms?
a) covalent b) ionic c) hydrogen d) atomic e) electronic
Normally, sodium and potassium leakage channels differ because __________.
Fill in the blank(s) with the appropriate word(s).