A postsynaptic neuron will have an excitatory postsynaptic potential (EPSP) when
A) chemically regulated potassium channels are open and potassium is diffusing out of the cell.
B) more calcium ions than usual diffuse into the neuron.
C) chemically regulated sodium channels are open and sodium is diffusing into the cell.
D) the neuron is hyperpolarized.
E) more potassium ions than usual diffuse out of the neuron.
C
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A) placental B) expulsion C) dystocia D) full dilation
Changes in environmental pH or temperature will cause the reaction rate for an enzyme to
A) increase. B) decrease. C) either increase or decrease depending upon enzyme properties. D) not change.
The type of muscle tissue in blood vessels is
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Muscles are named based on all of the following EXCEPT ________.
A. shape B. location C. amount of force produced D. function or action