The pia mater is the
A) toughest and thickest of the meninges.
B) outermost covering over the brain, but not the spinal cord.
C) innermost of the meninges.
D) menix that appears "webby" and contains cerebrospinal fluid.
E) All of the answers are correct.
C) innermost of the meninges.
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Birth control pills act as contraceptives by
a. preventing development of the endometrium into a suitable site for implantation b. preventing ovulation by inhibiting GnRH and thus FSH and LH secretion c. killing sperm d. precipitating in the cervical canal to act as a barrier to sperm entry e. increasing muscular contractions in the female reproductive tract so that ovulated eggs are flushed out before they have a chance to be fertilized
The ________ does not belong to the femur.
A. medial condyle B. greater trochanter C. lesser trochanter D. fovea capitis E. anterior border
As electricity travels down the left and right bundle branches, it first stimulates the:
A. purkinje fibers. B. interatrial pathways. C. ventricular myocardium. D. interventricular septum.
The heart sounds are due to the
A. heart contraction. B. heart relaxing. C. valves closing. D. blood flowing.