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# practice2 - BIO 206 Exam 2 Practice Questions 1 Which of...

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BIO 206 Exam 2 Practice Questions 1. Which of the following phrases best defines “blood pressure”? a. opposition to the flow of blood through a vessel b. cardiac output divided by peripheral resistance c. the volume of blood moving through a vessel during a given period of time d. the force per unit area exerted on the wall of a vessel by the blood contained inside e. the friction created by blood as it travels within a blood vessel 2. What can your body rapidly adjust to make changes in resistance to blood flow? a. viscosity of the blood b. the length of the blood vessel c. the radius of the blood vessel d. All of the above are correct. e. None of the above is correct. 3. Which one of the following equations is true? a. BP = HR × SV ÷ TPR b. BP = HR ÷ TPR c. BP = (HR + SV) × TPR d. BP = CO × TPR e. None of the equations above is true. 4. Consider the aorta and the inferior vena cava as they both pass through the diaphragm. Assume that the blood flow through the aorta is equal to the blood flow through the inferior vena cava (IVC). Also assume that the resistance in the aorta is greater than the resistance in the inferior vena cava. If these two assumptions are true, a. then the pressure gradient in the aorta is greater than the pressure gradient in the inferior vena cava. b. then the inside diameter of the aorta is larger than the inside diameter of the IVC. c. then the heart is in ventricular systole and atrial diastole. d. then the elasticity of the inferior vena cava is greater than the elasticity of the aorta. e. then the viscosity of blood in the aorta is greater than the viscosity of blood in the IVC. 5.

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practice2 - BIO 206 Exam 2 Practice Questions 1 Which of...

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