Exam 42: Circulation and Gas Exchange

A human red blood cell in an artery of the left arm is on its way to deliver oxygen to a cell in the thumb. To travel from the artery to the thumb and then back to the left ventricle, this red blood cell must pass through ________.

Consider the following reaction. If the pH of the blood was decreased, then the ________. CO₂ + H₂O↔H₂CO₃↔HCO₃⁻ + H⁺

Which of the following statements comparing respiration in fish and in mammals is correct?

While jogging, a person has a stroke volume of 130 ml/beat and a heart rate of 120 beats per minute. If their resting stroke volume was 70 ml/beat and resting heart rate was 60 beats per minute, how did this person's cardiac output change?

You cut your finger, and after putting pressure on the wound for several minutes, you notice that it is still bleeding profusely. What may be the problem?

The diagnosis of hypertension in adults is based on the ________.

Blood returning to the mammalian heart in a pulmonary vein drains first into the