There are three gluteal muscles. Select the one that is correctly matched with its primary action.
A. Gluteus maximus: abducts the thigh
B. Gluteus minimus: rotates the thigh
C. Gluteus medius: abducts the thigh
Answer: C
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A drug company creates a drug that acts as an antagonist to the human chorionic gonadotropin (hCG) receptor. The effect of this drug, if given in early pregnancy would be
A. degeneration of the corpus luteum and declining levels of progesterone and estrogen. B. secretion of large quantities of FSH and LH. C. secretion of large quantities of progesterone and estrogen. D. secretion of cortisol. E. secretion of large quantities of GnRH.
Within the urinary system, the storage reflex involves
A. contraction of both the detrusor muscle and the internal urethral sphincter. B. contraction of the detrusor muscle and relaxation of the internal urethral sphincter. C. relaxation of the detrusor muscle and contraction of the internal urethral sphincter. D. relaxation of both the detrusor muscle and the internal urethral sphincter.
Which type of movement is permitted at the radiocarpal joint?
A. sagittal plane motion B. circumduction C. frontal plane motion D. all of the above
The volume of blood ejected from the ventricles during each beat is called:
a. cardiac output b. stroke volume c. systole d. the cardiac cycle