1. Describe the levels of cellular organization and state the fourmajor types of cells and tissues.

2. List the organ systems of the body and give one-sentencedescriptions of their functions.

3. Name the two fluids that constitute the extracellular fluid.What are their relative proportions in the body?

4. What is one way in which the composition of intracellular andextracellular fluids differ?

5. Describe several important generalizations about homeostaticcontrol systems, including the difference between steady state andequilibrium.

6. Contrastfeedforward,positivefeedback,andnegativefeedback.

7. List the components of a reflex arc.

8. What is the basic difference between a local homeostaticresponse

   and a reflex?

9. List the general categories of intercellular messengers andbriefly

   describe how they differ.

10. Describe the conditions under which acclimatization occurs.Are

    acclimatizations passed on to a person’s offspring?

11. Define circadian rhythm. Under what conditions do circadian

    rhythms become free running?

12. How do phase shifts occur?

13. What is the most important environmental cue for entrainmentof

    circadian rhythms?

14. Draw a figure illustrating the balance concept inhomeostasis.

15. Make and keep a list of the general principles of physiology.See if

    you can explain what is meant by each principle. To really seehow well you’ve learned physiology at the end of your course,remember to return to the list you’ve made and try this exerciseagain at that time giving as many examples of each principle as youcan.