The pH scale is based on the number of ________ in solution
A) neutrons
B) electrons
C) protons
D) hydroxyls
C
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What is the major function of brown adipose tissue?
A. Decrease body temperature B. Shivering thermogenesis C. Decreasing metabolic rate D. Nonshivering thermogenesis
Which of the following helps explain the increased tension seen in multiple wave summation?
A. increased motor unit recruitment B. increased concentration of calcium ions around the myofibrils C. exposure of more active sites on myosin myofilaments D. the breakdown of elastic elements in the cell E. decreased stimulus frequency
Which of the following is incorrect pertaining to the internal jugular vein?
A) It receives blood from the inferior petrosal sinus. B) It is in the carotid sheath. C) It is accompanied in the upper neck by the great auricular nerve. D) It has pulsations that are observable in some cases of mitral valve disease. E) Typically, the right vein is used for catheterization.
Define vasoconstriction and vasodilation. What is the mechanism of regulation?
What will be an ideal response?