Axons extending from a peripheral ganglion to an effector are called
A) preganglionic fibers.
B) efferent fibers.
C) ganglionic fibers.
D) postganglionic fibers.
E) afferent fibers.
D) postganglionic fibers.
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The coronary sulcus is a groove that
A) marks the border between the atria and ventricles. B) marks the boundary line between the right and left ventricles. C) marks the boundary line between the right and left atria. D) separates the atrioventricular valves from the atria. E) separates the coronary arteries from the coronary veins.
If a cell lacked lysosomes, it would not be able to
A) digest cellular wastes and bacteria. B) transport water-soluble molecules. C) synthesize lipids. D) destroy H2O2. E) produce enzymes.
Which male reproductive gland produces the majority of the volume of semen and contains fructose used by sperm cells to make ATP?
a. Prostate b. Seminal vesicles c. Seminiferous tubules d. Bulbourethral gland
Select the statement that is true about normal expiration:
A. always a passive process caused by muscle relaxation B. can be altered by speech or physical activity C. alveolar pressure is less than atmospheric pressure D. air flows into the lung E. occurs as lung volume is increasing