[Bio1] 11/11 Pair SW for Cs and Li

  1. Please work on the pair SW mindfully.
  2. Make sure you understand each answer you write on your 1 whole sheet of paper.
  3. Submit your worksheets next week.

Vertebrate Circulation

  1. Draw and describe the plans of the circulatory systems of fishes, amphibians, reptiles, birds and mammals and explain why these are suited to these organisms.
  2. Describe what happens to the chambers (right and left atria and ventricles) and valves of the heart during each phase of the cardiac cycle. Present your summary in a tabular form.
  3. Make a flowchart tracing the flow of electrical stimulation in the heart.
  4. What causes the “lub dub” sound of heartbeat?
  5. Differentiate between the following terms: cardiac output, pulse, and blood pressure.
  6. Why does blood slow down in capillary beds?
  7. Sketch a precapillary sphincter in a capillary bed. What is the function of precapillary sphincters?
  8. Define osmotic pressure and hydrostatic pressure. Compare the osmotic and hydrostatic pressures at the arterial and venus ends of a capillary.
  9. What structures help veins transport blood back to the heart?
  10. What are the major functions of the lymphatic system?

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s