Action potentials result from
A) closing of ion channels.
B) opening of calcium gates.
C) neurons transporting neurotransmitters.
D) abrupt changing of the transmembrane potential.
E) All of the answers are correct.
D) abrupt changing of the transmembrane potential.
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Eversion and inversion refer to movements of the ____
a. hand
b. wrist
c. knee
d. foot
Which is not a function of the spleen?
A. Serves as a platelet reservoir B. Filters blood C. Filters lymph D. Recycles aged erythrocytes E. Houses lymphocytes
The kidneys not only remove waste products from the blood, they also assist in the regulation of
a) blood ion levels. b) blood pressure. c) blood pH. d) blood volume. e) All of the answers are correct.
The relaxation phase of a heart chamber is termed ________.
Fill in the blank(s) with the appropriate word(s).