Rotating the forearm so that the palm faces anteriorly is called
A. circumduction.
B. rotation.
C. hyperextension.
D. supination.
E. pronation.
D
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Scientists recently discovered a possible new route for direct exchange of materials between cells: ____
a. piggy back molecules b. tunneling nanotubes c. microcrystals d. protein carriers e. lipid bridges
What are the reproductive organs that produce gametes and hormones?
a. accessory glands b. vagina and penis c. gonads d. all of the above
Which of the following statements concerning control of blood flow through arterioles is TRUE?
A. Beta-adrenergic receptors are more abundant on most arteriolar smooth muscle than are alpha-adrenergic receptors. B. Body-wide constriction of arterioles results in a decrease in the total peripheral resistance (TPR). C. Binding of epinephrine to alpha-adrenergic receptors causes vasodilation. D. If the arterial blood pressure to an organ suddenly decreases, arterioles in the organ will dilate in response. E. Increased stimulation of vascular smooth muscle by the parasympathetic nervous system causes increased vasoconstriction.
List the three vessels that bring oxygen-poor blood to the right atrium. Which regions of the body do they serve?
What will be an ideal response