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14 Cards in this Set

  • Front
  • Back

Neurons that relay information within the CNS and are the location of information processing are called


From medial to lateral, what are the muscles of the hamstring group?

semimembranosus, semitendinosus, biceps femoris

The main immediate source of ATP (lasting about 10 seconds) as muscle contractions begin comes from:

creatine phosphate.

If oxygen is not available, the muscle fiber will produce ATP by

anaerobic catabolism

Through which ATP-generating mechanism can long-lasting muscle contractions be sustained?

oxidative catabolism

Wave summation, in which the muscle can only partially relax between contractions, will lead to

unfused tetanus

The type of contraction represented by a single stimulus/contraction/relaxation sequence is a(n)


Compared to Type I fibers, Type II fibers

can generate faster, more powerful contractions

During the absolute refractory period, production of another action potential is not possible.


Axons with a smaller diameter can conduct nerve impulses more quickly than axons with a larger diameter.


The majority of synapses in the nervous system are:


Which of the following must happen first in the order events at a chemical synapse?

Calcium ion channels in the axon terminal open.

Which of the following is most likely to produce an action potential?

excitatory postsynaptic potential (EPSP)

When a second EPSP arrives at a single synapse before the effects of the first have disappeared, what results?

temporal summation