The P wave of a normal electrocardiogram indicates ________
A) ventricular repolarization
B) atrial depolarization
C) atrial repolarization
D) ventricular depolarization
B
You might also like to view...
The __________ is formed by water molecules that surround water-soluble molecules in a solution
Fill in the blank with the correct word.
When blood passes through systemic capillaries, the oxygen saturation of hemoglobin changes
A. from about 98% to about 75% saturated. B. from about 40% to about 80% saturated. C. from about 70% saturated to about 99% saturated. D. from about 99% saturated to about 25% saturated.
Which sympathetic pathway involves a preganglionic neuron that synapses with a ganglionic neuron in a sympathetic trunk ganglion, but the postganglionic axon does not leave the trunk via a gray ramus?
A. Spinal nerve pathway B. Postganglionic sympathetic nerve pathway C. Adrenal medulla pathway D. Splanchnic nerve pathway E. None of the choices is correct.
Although two breast cancer genes are known, most cases are nonhereditary.
Answer the following statement true (T) or false (F)