Which is not correct regarding the white pulp of the spleen?
A. Its cells include T-lymphocytes, B-lymphocytes, and macrophages.
B. Its cells are arranged in clusters that are circular in shape.
C. It contains a central artery.
D. It serves as a blood reservoir.
D
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If a stimulating electrode is placed in the middle of a resting axon and an above-threshold voltage is applied to the electrode action potentials
A) will start at that point and travel in both directions in the axon. B) will start at that point and proceed only toward the axon terminal. C) will not occur. D) will start at that point and proceed only toward the cell body.
In the mammary glands, 15 to 30 of these expanded chambers open onto the surface of each nipple.
A) lobes B) lobules C) lactiferous ducts D) lactiferous sinuses E) suspensory ligaments
The olfactory nerves may be damaged if the ________ bone is fractured.
A. ethmoid B. frontal C. temporal D. sphenoid E. occipital
An increase in heart rate would ________ cardiac output.
A. decrease B. not change C. increase