Exam 42: Circulation and Gas Exchange

Dialysis patients, who will have blood withdrawn, dialyzed, then replaced, are always weighed when they enter the facility and then weighed carefully again before they leave. What is the most likely explanation for this requirement?

The following questions refer to the data shown below. Blood entering a capillary bed of a vertebrate was measured for the pressures exerted by various factors. Arterial End of Capillary Bed Venous End of Capillary Bed Hydrostatic pressure 10 14 Osmotic pressure 26 26 100 42 40 46 Figure 42.1 -The Bohr shift on the oxygen-hemoglobin dissociation curve is produced by changes in

Human plasma proteins include which of the following? I. fibrinogen II. hemoglobin III. immunoglobulin

Which of these are involved in the early stages of blood clotting?

Which of the following would be described as a portal system?

When you hold your breath, which of the following blood gas changes first leads to the urge to breathe?

Which of the following is an example of countercurrent exchange?

If, during protein starvation, the osmotic pressure on the venous side of capillary beds drops below the hydrostatic pressure, then

Which of the following is a normal event in the process of blood clotting?

The following questions refer to the data shown below. Blood entering a capillary bed of a vertebrate was measured for the pressures exerted by various factors. Arterial End of Capillary Bed Venous End of Capillary Bed Hydrostatic pressure 10 14 Osmotic pressure 26 26 100 42 40 46 Figure 42.1 -Which of the following is a characteristic of both hemoglobin and hemocyanin?

A patient has a blood pressure of 120/75, a pulse rate of 40 beats/min, a stroke volume of 70 mL/beat, and a respiratory rate of 25 breaths/min. This person's cardiac output per minute will be

What would be expected if the amount of interstitial fluid surrounding the capillary beds of the lungs were to increase significantly?

Large proteins such as albumin remain in capillaries rather than diffusing out. Which of the following does this cause?

Which of the following is measured by an electrocardiogram?

If the atrioventricular node could be surgically removed from the heart without disrupting signal transmission to the Purkinje fibers, what would be the effect?

An anthropologist discovers fossilized animal remains that give strong evidence that the organism had a large, well-formed, most likely 4-chambered heart, with no connection between the right and left sides. Which of the following could most reasonably be hypothesized from this observation?

Organisms in which a circulating body fluid is distinct from the fluid that directly surrounds the body's cells are likely to have which of the following?

Which sequence of blood flow can be observed in either a reptile or a mammal?

The conversion of fibrinogen to fibrin

Which of the following features do all gas exchange systems have in common?