All of the following are adaptations that allow the heart to use aerobic respiration for energy except which one?
A. Cardiac cells are rich in myoglobin.
B. Cardiac cells are rich in glycogen.
C. Cardiac cells use a variety of fuels as energy sources.
D. Cardiac cells have fewer mitochondria.
Answer: D
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The pronator teres and pronator quadratus cause pronation of the forearm. What muscle opposes this movement?
A. Pectoralis major B. Supinator C. Subscapularis D. Biceps brachii E. Triceps brachii
The physical movement of air into and out of lungs is termed
A) external respiration. B) internal respiration. C) cellular respiration. D) pulmonary ventilation. E) gas diffusion.
Which of the following is the term for blood noted within the eye?
a. anisicoria c. hyphema b. nystagmus d. jaundice
Which of the following events would increase filtration pressure?
A. increase in capsular pressure B. constriction of the efferent arteriole C. increase in colloid osmotic pressure D. decrease in renal blood flow E. dilation of the efferent arteriole