The forearm acts as a third-class lever during flexion of the elbow
Indicate whether the statement is true or false
TRUE
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The contraction of any one cardiac muscle fiber
A) will cause the rate of heart muscle contraction to increase. B) will immediately trigger an all-or-none response in all other cardiac fibers. C) will stimulate the electrical conduction system of the heart. D) will cause the contraction of several others. E) None of the answers are correct.
What molecules are liver-synthesized derivatives of free fatty acids that can be used as an immediate source of energy by many organs?
A. Steroids B. Cholesterols C. Ketone bodies D. Glycerols
Cortisol:
a. has the opposite effect of aldosterone b. is made in the outer zone of the adrenal cortex c. stimulates gluconeogenesis d. all of the above
The right side of the heart receives:
A) deoxygenated blood from the pulmonary circuit. B) oxygenated blood from the systemic circuit. C) oxygenated blood from the pulmonary circuit. D) deoxygenated blood from the systemic circuit.