Pulmonary surfactant reduces the work of breathing and increases lung stability by increasing alveolar surface tension
Indicate whether the statement is true or false
F
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What do the posterior gray horns of the spinal cord contain?
A. Myelin B. Motor neurons C. Interneurons D. Dorsal roots E. Dorsal root ganglia
The advantage of having many nuclei in a skeletal muscle fiber is
A) The ability to contract. B) The ability to produce more ATP with little oxygen. C) The ability to repair the fiber after an injury. D) The ability to produce large amounts of the enzymes and structural proteins needed for contraction. E) both B and C
The organ that surrounds the urethra and produces an alkaline secretion is the
A) seminal gland (seminal vesicle). B) bulbo-urethral gland. C) prostate gland. D) preputial gland. E) Bartholin's gland.
What happens when osteoclast activity exceeds osteoblast activity?
A. bone mass increases B. bone modeling C. bone mass decreases D. none of the above