HISTO

• Muscle tissue


  Composed of cells that optimize the universal cell property of contractility

  
• Muscle tissue


  • Characterized by the ability to contract / move upon stimulation

  
• Functional characteristics of muscle tissue

  • Excitability / Irritability
  • Contractility
  • Extensibility
  • Elasticity

  
• Types of muscle tissue

  • Skeletal / Striated Muscle
  • Smooth Muscle
  • Cardiac Muscle

  
• Myofibril


  Thin filaments and thick filaments
• Muscle fiber: Myofibril


  1. Myofibril

  2. Z disc

  3. M line

  4. H zone

  5. I band

  6. A band

  7. Sarcomere

  
• Sarcomere


  The basic unit of skeletal muscle

  
• Types of smooth muscle

  • Visceral Smooth Muscle
  • Vascular Smooth Muscle
  • Smooth muscle of the Iris
• Types of cardiac muscle fiber

  • Atrial Cardiac Muscle
  • Ventricular Cardiac Muscle
• The nucleus is the control center of the cell, containing genetic material (DNA) that determines an organism's characteristics.
• Nucleolus - A small structure within the nucleus responsible for producing ribosomes
• Ribosome - The site where protein synthesis occurs
• Rough endoplasmic reticulum (RER): Site of protein synthesis and modification, with ribosomes attached to its surface.
• Endoplasmic Reticulum - A network of membranes involved in protein synthesis and lipid metabolism
• Golgi apparatus: Modifies proteins produced by RER and packages them into vesicles for transport within or outside the cell.