ipCD – Muscle - Muscle Anatomy, Neuromuscular Junction and Sliding Filament Theory

Benjamin Cummings. InterActive Physiology® 8-System Suite CD-ROM, Benjamin Cummings, 2004.

Objective:

To describe in short essays or diagrams the anatomical organization of muscle cells and the neuromuscular junction and to explain how nervous stimulation causes muscle contraction, at the level of 85% proficiency for each student.

 

In order to achieve this objective, you will need to be able to:

  1. Describe the basic anatomical features of skeletal muscle and skeletal muscle cells.
  2. Describe the organization of the neuromuscular junction; and explain the role of motor neurons in causing the contraction of a muscle cell.
  3. Explain the sequence of events at the neuromuscular junction that follow stimulation of a nerve.
  4. Describe the molecular structure and functional features of thin filaments and of thick filaments.
  5. Explain the sequence of events that occur in single cross bridge cycle, including the role of ATP and calcium.
  6. Explain the sequence of events that occur in multiple cross bridge cycling.

 

© David G. Ward, Ph.D.  Last modified by wardd 23 May, 2006