Based on What You Learned in the Chapter on Control

question 16

Essay

Based on what you learned in the chapter on control of blood flow and pressure, what must happen to blood flow to meet the metabolic demands of exercising skeletal muscle? How is this accomplished? What is the predicted effect of this change on systemic blood pressure during exercise? What are the changes in heart function during exercise, and what effects should those changes have on systemic blood pressure? What actually happens to systemic blood pressure during exercise? Explain the apparent contradictions.

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Definitions:

Pharmacologic Potentiation

The increase in the effect of one drug by the use of another, often enhancing the first drug's therapeutic effect.

Polysubstance Rush

A term suggesting an intense, rapid sensation or high resulting from the simultaneous use of multiple psychoactive substances.

Antagonistic Action

A type of interaction in which one substance or organism acts against or inhibits the effects of another, often used in pharmacology to describe the opposing effects of drugs on the body.

Synergistic Effect

The phenomenon where the combined effect of two or more factors exceeds the sum of their individual effects.