The cerebellum and basal nuclei both help coordinate voluntary movements, but neither of these brain regions directly stimulate motor neurons
Indicate whether the statement is true or false
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A major difference between fetal blood flow and adult blood flow is that in the fetus the
A. inferior vena cava contains blood high in oxygen. B. internal iliac arteries are known as umbilical arteries. C. femoral vein contains blood low in oxygen. D. pulmonary artery delivers blood to the lungs.
Which of these statements about sexually transmitted infections is false?
A) Genital herpes is caused by a virus that may cause intermittent lesions. B) Chlamydia is caused by bacteria that can often be asymptomatic or bring on a wide variety of symptoms. C) Syphilis is caused by a virus that may lead to death if untreated. D) Gonorrhea is caused by a bacterium that can bring on painful discharges in males.
Two hours before major surgery is to begin, the patient experiences "jitters," an elevated heart rate and blood pressure, increased rate of breathing, cold sweats, and an urge to urinate. These symptoms are the result of
A) decreased levels of epinephrine in the blood. B) decreased activity of sympathetic centers in the hypothalamus. C) sympathetic activation. D) increased parasympathetic activity. E) all of these mechanisms.
The ________ division of the ANS is most commonly associated with the preparation of the body for emergencies.
Fill in the blank(s) with the appropriate word(s).