4 FA Major Muscles and Function of Muscles

• Major muscles in the body


  • Biceps
  • Triceps
  • Gastrocnemius
  • Trapezius
  • Deltoid
  • Quadriceps
  • Hamstrings
  • Tibialis Anterior
  • Adductor group
  • Latissimus Dorsi
  • Soleus
  • Abdominal
  • Gluteus Maximus
  • Pectorals
• Sporting examples of how muscles produce movement


  Biceps, triceps, gastrocnemius, trapezius, deltoid, quadriceps, hamstrings, tibialis anterior, adductor group, latissimus dorsi, soleus, abdominal, gluteus maximus, pectorals
• Functions of the muscular system


  • Maintain essential bodily functions
  • Maintain posture
  • Stabilise joints
  • Generate heat
  • Produce movement
• Voluntary muscles


  Skeletal muscles that are consciously controlled, attached to bones, and enable the body to respond quickly to changes in the external environment
• Involuntary muscles


  Muscles that we have little or no conscious control over, responsible for maintaining the body's ongoing needs, including smooth muscle of hollow organs and cardiac muscle
• The human body is made up of over 600 muscles working together to provide both conscious and subconscious movements
• Smooth muscle of hollow organs and cardiac muscle are responsible for maintaining essential bodily functions
• Continuous contraction of muscles makes tiny adjustments to maintain posture despite gravity
• Muscle tendons play an important role in reinforcing and stabilising joints
• Heat is a by-product of muscular activity, with nearly 3/4 of ATP energy released as heat, which is critical in maintaining normal body temperature