Module 4 Microscopic Muscle Anatomy

Slide Show #1 Microscopic Muscle Anatomy

This slide show covers:

• Functions of muscles
• 3 types of muscle tissue (skeletal, cardiac, smooth)
• Characteristics of all muscles
• Skeletal muscle fiber structures
• Structure of a skeletal muscle
• Connective tissue wrappings of a skeletal muscle
• The sarcomere
• Actin & myosin
• Attachments of skeletal muscle

Slide Show #2 Muscle Contraction & Sliding Filament Theory

This slide show covers:

• Skeletal muscle contraction
• Neuromuscular junction
• Action potentials 
• Excitation-contraction coupling
• Steps of muscular contraction
• Sliding Filament Model
• Cross-bridge cycling
• Muscle relaxation
• Energy sources for contraction
• Oxygen debt
• Muscular response to stimulus 
• Threshold stimulus
• All or none response
• Muscle fatigue
• Twitch, summation, tetanus
• Isotonic & isometric contractions

--Alternate Slide Show for Muscle Contraction & Sliding Filament Theory (Simplified Version)  

This slide show is an alternate version of Slide Show #2 Muscle Contraction & Sliding Filament Theory. It covers just the basics! 

Slide Show #3 Skeletal Muscle Actions

This slide show covers:

• Muscles as levers
• Origin & insertion
• How skeletal muscles interact (agonist, prime mover, synergist, antagonist)
• Ways muscles are named 
• Muscle Actions (common surface muscles of the head & shoulders, trunk, arm, and leg and their actions)