Blog

Dr. Hansen goes to the doctor for her routine annual physical. The exam begins with the nurse taking her vitals. Her blood pressure is 102/71. Her heart is beating 73 times per minute. Prior to each contraction, there is 160 ml of blood in her left ventricle, and 55 ml remains in the ventricle after the heart contracts. What is Dr. Hansen’s stroke volume?

How would increased skeletal muscle contraction affect mean arterial pressure?

Compared to resting conditions, how does exercise affect blood flow to the brain?

Ejection of blood from the right ventricle will continue until ________.

What is true at the conclusion of the power stroke?

How would an increased capacitance of veins affect mean arterial pressure?

Which of the following results in increased stroke volume?

Compared to resting conditions, how does exercise affect blood flow to the heart?

Read the instructions and each question carefully. Identify the choice that best or most specifically completes the statement or answers the question. Each question is worth 2 points (unless otherwise specified) for a total of 100 points.

As exercise progresses from low intensity to high intensity, what is the order in which more muscle fibers are activated to supply the required force?