BIO 3520
McGilliard
 

Reading Assignment:

     Widmaier, pp. 1-11.

     Schmidt-Nielsen, K.  How are control systems controlled?  American Scientist  82: 38-44,

          1994.^a
 

Objectives:

     After reviewing your lecture notes and reading assignment, you should be able to:

     1.  Define physiology.

          Lecture -- 8/20
          Text -- pg. 2
          Notes

     2.  List five basic activities common to most cells.

          Lecture -- 8/22
          Text -- pg. 2
          Notes

     3.  Compare unicellular and multicellular organisms with respect to their degree of
          specialization and vulnerability to environmental stress.

          Lecture -- 8/22

     4.  Define homeostasis and describe its importance to cellular function.

          Lab -- 8/21, 8/22
          Text -- pg. 6-7

          Cycle of Homeostasis^b
          Notes

     5.  Given the description of a physiological process, draw a control system diagram
          and identify each of the following components:
          a.  Sensor.
          b.  Afferent pathway.
          c.  Control center (integrating center).
          d.  Efferent pathway.
          e.  Effector.

          Lab -- 8/21, 8/22
          Text -- pp. 9-11
          Figure -- 1-6^c
          Notes

     6.  Distinguish between a negative feedback loop and a positive feedback loop.

          Lab -- 8/21, 8/22
          Text -- pg. 8
          Notes

     7.  Give two examples of negative feedback loops in physiology.

          Lab -- 8/21, 8/22
          Text -- pg. 8

     8.  Give two examples of positive feedback loops in physiology.

          Lab -- 8/21, 8/22
          Text -- pg. 8

     9.  For each of the following examples, name or describe the sensor and describe the

          behavior that results in maintaining homeostasis:
          a.  Salt deficiency in moose.
          b.  Phosphate deficiency cattle.
          c.  Dehydration in camels.
          d.  Excess salt intake in marine birds.
          e.  Fever in desert iguanas.

          Lecture -- 8/24
          Schmidt-Nielsen

          Notes

   10.  Describe four levels of organization in the animal body.

          Lecture -- 8/22
          Text -- pp. 2-5
          Figure -- 1-1
          Table -- 1-1

          Cell Differentiation
          Notes

   11.  Name the four primary tissues and give a general function of each.

          Lecture -- 8/22
          Text -- pp. 2-4
          Notes

   12.  List three functions of the skin.

          Lecture -- 8/22
          Notes

   13.  Describe the location and functions of each type of primary tissue in the skin.

          Lecture -- 8/22
          Figure -- 7-16
          Notes
          Structures of the Skin^d
          Structures of the Skin (quiz yourself)^e

   14.  Discuss the importance of keratin and melanin in the skin.

          Lecture -- 8/22

          Notes

   15.  Identify four components of the PowerLab recording system and their functions.

          Lab -- 8/21, 8/22
          Introduction to PowerLab
          Notes

  16.  Identify a significant contribution of each of the following scientists to the field of
          physiology:
          a.  Claude Bernard.
          b.  Walter Cannon.

          Lab -- 8/21, 8/22
          Text -- pg. 6
          Notes
 

Review Questions (Widmaier):

     Pg. 17, #1, 2, 7.

Test Questions:

     Pg. 17, #1, 3.  (Note:  Answers to Test Questions are found in Appendix A).

^a Copies may be obtained on-line (password protected) and print copies are on reserve in Booth Library.

^b From Sherwood, L.  Human Physiology: From Cells to Systems, 5th ed., Brooks/Cole, Belmont, CA, 2004.

   Due to copyright restrictions, figures are password protected.

^c From Widmaier, E.P., Raff, H., and Strang, K.T.   Vander's Human Physiology:  The Mechanisms of Body

   Function, 11th ed., McGraw-Hill, New York, 2008 (password protected).

^d From Fox, S.I.  Human Physiology, 7th ed., WCB/McGraw-Hill, Boston, 1999 (password protected).

^e From Human Anatomy On-Line:  Innerbody.com.