The fluids contributed by the seminiferous tubules and epididymis account for about how much of the volume of semen?
A) 75%
B) 5%
C) 50%
D) 10%
E) 25%
B) 5%
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Which of the following is true about the uterine tubes?
A) The ampulla is a narrow constricted region. B) The infundibulum is the expanded region of the uterine tube. C) The isthmus is the normal site of fertilization. D) None of the listed responses is correct.
Nucleoli
A. produce ribosomal subunits. B. are important for the formation of the Golgi apparatus. C. regulate movement of materials into the nucleus. D. have a distinct membrane. E. are located in the cytoplasm.
Nerve fibers are insulated from one another by __________.
A. perineurium B. endoneurium C. fascicles D. epineurium E. blood vessels
Which of the following hormones functions to increase water reabsorption by inserting aquaporins into the principal cell apical membranes?
A) aldosterone B) progesterone C) atrial natriuretic peptide D) antidiuretic hormone