Which of the following muscles is not a major muscle used to flex the thigh at the hip?
A. Sartorius
B. Rectus femoris
C. Biceps femoris
D. Iliopsoas
Ans: C. Biceps femoris
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Molecules that readily dissolve in water are called ________.
Fill in the blank(s) with the appropriate word(s).
Elevated levels of calcium ion in the blood stimulate the secretion of the hormone
A) parathyroid hormone. B) calcitonin. C) testosterone. D) growth hormone. E) thyroid hormone.
Why does an increase in carbon dioxide increase the quantity of hydrogen ions in blood?
A) When carbon dioxides dissolves in water, it releases hydroxides. B) When carbon dioxide mixes with water, it loses two electrons. C) When carbon dioxide mixes with blood, it slows the transfers of hydrogen ions. D) When carbon dioxide is dissolved in water, it forms carbonic acid.
Urine formed in the pyramids must flow within the kidney to the ureter. Which structure is not part of the transport path within the kidney that carries urine to the ureter?
A. Minor calyx B. Major calyx C. Renal pelvis D. Renal sinus E. No exceptions; all choices transport urine.