You go to the movies after a long day and you begin to nod off as soon as the movie starts. Your head starts to lower a little, but a reflex causes your head to rise. This is called the ________ reflex.
A. flexor (withdrawal)
B. withdrawal
C. tendon
D. crossed extension
E. stretch (myotatic)
Answer: E
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Counterirritants work by calming the inflammatory response or counteracting inflammation
a. true b. false
Which type of muscle is found in the wall of the heart?
A. Smooth muscle B. Cardiac muscle C. Skeletal muscle
What is the ultimate electron acceptor for the electrons captured by the cofactors during glucose decomposition?
a. nitrogen b. hydrogen c. oxygen d. carbon
Describe depolarization, repolarization, and hyperpolarization
A) Depolarization is a shift in membrane potential toward a more positive value; repolarization is the return of the membrane potential to resting; and hyperpolarization is a shift in membrane potential toward a more negative value. B) Depolarization is a shift in membrane potential toward a more negative value; repolarization is the return of the membrane potential to resting; and hyperpolarization is a shift in membrane potential toward a more positive value. C) Depolarization is the return of the membrane potential to resting; repolarization is a shift of the membrane potential toward a more positive value; and hyperpolarization is a shift in membrane potential toward a more negative value. D) Depolarization is the return of the membrane potential to resting; repolarization is a shift of the membrane potential toward a more negative value; and hyperpolarization is a shift in membrane potential toward a more positive value. E) Depolarization is a shift in membrane potential toward a more negative value; repolarization is a shift of the membrane potential toward a more negative value; and hyperpolarization is the return of the membrane potential to resting.