PATHFIT 2

• Musculoskeletal System


  also known as a locomotor system is the human body system that provides our body with movements stability shape and support. It is subdivided into two broad systems which are muscular and skeletal system
• Nervous system 


  brain and nerves
• what does the muscle fibers do response to the message

  the Muscle fiber contact tense up
• The musculoskeletal system (locomotor system) provides the human body with movement, stability, shape, and support
• It is subdivided into two broad systems: the muscular system and skeletal system
• The nervous system sends a message to activate skeletal (voluntary) muscles
• Muscle fibers contract in response to the message
• When the muscle activates or bunches up, it pulls on the tendon, which moves the bone
• To relax the muscles, the nervous system sends another message triggering the muscles to relax
• The relaxed muscle releases tension, moving the bone to a resting position
• Parts of the musculoskeletal system include:

  • Bones: support the body, protect organs, store calcium and fat, produce blood cells
  • Cartilage: cushions bones, protects from rubbing, found in joints, spine, ribcage, nose, ears, pelvis, and lungs
  • Joints: where bones come together, allowing different types of movement
  • Muscles: made of stretchy fibers, allow movement, sitting upright, and staying still
  • Ligaments: tough collagen fibers that connect bones and stabilize joints
  • Tendons: connect muscles to bones, made of fibrous tissue and collagen
• Conditions and disorders affecting the musculoskeletal system include aging, arthritis, back problems, cancer, congenital abnormalities, diseases, and injuries
• Types of musculoskeletal injuries:

  • Contusion: muscle injury from a direct hit, causing stiffness and swelling
  • Strain: twist, pull, or tear of a muscle or tendon, can lead to inability to move
  • Sprain: ligament injury from trauma, causing injury, swelling, inflammation, pain, and tenderness
  • Abrasion: injury from friction, skin layers rub off
  • Bursitis: inflammation of bursae, small sacs between bones and moving parts
  • Dislocation: joint injury from forceful impact, causing pain, swelling, bruising, and joint instability
• • Fracture: partial or complete break in the bone, with symptoms like pain, swelling, tenderness, inability to move, bruising, and deformity
• Injury risk factors include force, awkward postures, and repetition/duration
• Prevention of injuries includes warming up, stretching, progressing properly, cooling down, listening to your body, resting, recovering, and following a healthy diet
• In sports, acute injuries happen suddenly, while chronic injuries result from overuse and develop gradually over time
• Prevention in sports includes creating a fitness plan, using the right equipment, learning proper methods, resting when tired, taking time during strength training, and getting adequate rehabilitation for sports injuries
• First aid for basic injuries involves the RICE method: Rest, Ice, Compress, Elevate
• First aid for dislocation includes seeking immediate medical help, splinting the affected joint, and applying ice to reduce swelling
• First aid for fractures involves stopping external bleeding, immobilizing and supporting the fracture, keeping the injured person warm, ensuring further care, and not moving the injured person unnecessarily