BIO 3520
McGilliard
 
 

Reading Assignment:

     Widmaier, pp. 186, 199-204, 312-319, 582.
 

Objectives:

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

     1.  Compare and contrast the structure of smooth muscle fibers and skeletal muscle

          fibers.

          Lecture -- 10/05
          Text -- pp. 312-313
          Figures -- 9-32, 9-33

     2.  Describe the orientation of smooth muscle fibers around a hollow organ such as

          the intestine.

          Lecture -- 10/05
          Text -- pg. 582

          Figure -- 15-6
          Layers of the Digestive Tract

     3.  Compare and contrast the mechanisms of contraction of smooth muscle and

          skeletal muscle.

          Lecture -- 10/05
          Text -- pp. 313-315
          Figure -- 9-35

     4.  Compare and contrast the properties of smooth muscle and skeletal muscle

          contraction, such as intrinsic activity, graded vs. all-or-none contraction,

          speed of contraction, and energy requirement.

          Lecture -- 10/05
          Text -- pp. 313-315
          Figure -- 9-36

     5.  Compare and contrast the sympathetic and parasympathetic nervous divisions

          with respect to:
          a.  Function.
          b.  Organs innervated.
          c.  Location of preganglionic cell bodies.
          d.  Location of postganglionic cell bodies.
          e.  Neurotransmitters.
          f.   Effects on the pupil of the eye.

          Lecture -- 10/05
          Text -- pp. 199-204
          Figures -- 6-44 , 6-45
          Table -- 6-11
          Notes

     6.  Describe the function of the adrenal medulla and explain why it is considered a

          part of the sympathetic nervous division.

          Lecture -- 10/05
          Text -- pp. 201-202
          Figure -- 6-46
          Notes

     7.  Describe the innervation of smooth muscle by autonomic motor neurons,

          the neurotransmitters involved, and the types of receptors to which those

          neurotransmitters bind.

          Lecture/Lab -- 10/05, 10/09, 10/10
          Text -- pp. 186, 199-202, 316-317
          Figures -- 6-44, 9-37
          Notes

     8.  Describe the mechanisms by which neurotransmitters or hormones alter smooth

          muscle tone.

          Lecture -- 10/08
          Text -- pp. 316-317
          Figures -- 5-5a, 5-6

     9.  Contrast the organization and physiology of single-unit and multi-unit smooth

          muscle.

          [Not covered]
          Text -- pp. 318-319
          Figure -- 9-38
          Table -- 9-6
 

Review Questions:

     Pg. 207, #7-9.
     Pg. 320, #1-8.
 

Test Questions:

     Pg. 209, #10.

     Pg. 321, #8.