In research studies, about ________ of guilty subjects were able to defeat a polygraph test by creating a small amount of pain during control questions

Which of these responses is normal for women in the plateau phase?

a. the clitoris disappears beneath the clitoral hood b. the breasts swell, obscuring nipple erection c. secretion from the vaginal walls can slow down if the plateau stage is prolonged d. all of the above

The _______ is the most caudal portion of the brain stem

a. spinal cord b. pons c. cerebellum d. medulla oblongata e. metencephalon