What action(s) does the quadriceps femoris perform on the lower leg?
A. flex the leg at the knee joint
B. extend the leg at the knee joint
C. a and b
D. The muscles listed do not move the lower leg.
Answer: B
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lipids. proteins. carbohydrates. nucleic acids. steroids.
Which of the following is not an analgesic (pain reliever) found naturally in the central nervous system?
A. Dynorphin B. Enkephalins C. Endogenous opioid D. Endorphins E. Bradykinin
What is the function of red bone marrow?
a. fat storage b. mineral storage c. glucose storage d. blood cell formation
Which of these activities is associated with the right cerebral hemisphere in most people?
A. adding numbers B. reciting the Gettysburg address C. painting a watercolor landscape D. using a calculator E. making a household budget