Erection and ejaculation can be initiated by
A. impulses from the cerebellum.
B. increased levels of LH and FSH.
C. contraction of smooth muscle.
D. increased blood levels of testosterone.
E. manual stimulation of the penis.
Answer: E
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The __________ suture separates the temporal bone from the parietal bone.
A. coronal B. squamous C. lambdoid D. sagittal E. frontal
Which structures in capillary beds open to allow the capillaries to perfuse with blood?
A. Thoroughfare channels B. Precapillary sphincters C. Fenestrations D. Postcapillary sphincters E. Metarterioles
Autoregulation of the rate of glomerular filtration does not depend on
A) changes in the afferent arteriole. B) changes in the mesangial cells. C) changes in the efferent arteriole. D) release of renin by the juxtaglomerular complex. E) None of the answers is correct.
What structure drains blood from the kidney?
A) Renal ureter B) Renal artery C) Renal vein D) Renal pelvis