Exam 23: Circulation and Respiration

Trace the path of a red blood cell in a circuit that takes it from the capillary bed of the right kidney to the capillary bed of the left kidney.Assume that you are doing this for an animal with a double circulation system.

Red blood cells with a sickle shape can block circulation in small blood vessels.Which blood vessels are most likely to become blocked by sickle cells?

The scientists found that the level of carbon dioxide in the air did not cause college students to yawn more frequently.What other experiment could they conduct to confirm that they should reject the hypothesis that yawning is regulated in the same way as breathing?

Please refer to the following art to answer the following questions. -In varicose veins,the one-way flow of blood in veins is disrupted,which can cause swelling and blood clots.What might help return the blood flow in these veins to normal?

The figure below shows that ________.

The buildup of plaque in the walls of arteries results in ________.

Animals need O₂ because it ________.

Breathing is regulated by ________.

Earthworms use ________ as their respiratory surface.

In the human respiratory system,gas exchange occurs across the cells of the ________.

When a person exhales to complete a yawn,what happens?

The following figure illustrates ________.

If you separated the components of blood and looked closely at only the plasma,you might find ________.

Please refer to the following art to answer the following questions. -The one-way flow of blood in veins is maintained by ________.

Together,inhalation and exhalation are referred to as ________.

Which of the following can cause anemia? I)bone marrow disease II)iron deficiency III)low number of white blood cells

Oxygen is transported through the body mostly ________.

As a consequence of red blood cells' lack of nuclei and other organelles,they ________.

In a human,the ________ provide(s)a common passageway for both food and air.

Leukemia ________.