The figure illustrates a medial view of bones of the right foot. What does "B" represent?
A. calcaneus
B. fibula
C. metatarsals
D. tibia
E. talus
D
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Which of the following is used to promote Na+ reabsorption by the kidneys?
a) Antidiuretic hormone b) ANP c) Aldosterone d) Parathyroid hormone e) All of these choices
Aldosterone exerts effects on principal cells of the kidney by causing
A. increased levels of cAMP and increases in the total number of Na+ channels. B. decreased levels of cAMP and decreases in the number of open K+ channels. C. increased numbers of Na+/K+ pumps. D. decreased numbers of Na+/K+ pumps.
The genetic determinate for male reproductive development is ________
A) inhibition of estrogen B) the SRY gene C) presence of testosterone D) lack of an X chromosome
Read the two statements and use the following key to choose the best answer.A. The first item is greater than the second item.B. The first item is less than the second item.C. The first item is equal or nearly equal to the second item.(1) The rate of erythropoiesis when erythropoietin is present(2) The rate of erythropoiesis when erythropoietin is absent
Fill in the blank(s) with the appropriate word(s).