Lec 4

Cards (27)

  • What factor affects joint stability related to bony structure shape?
    Shape of the bony structure
  • How does the depth of the acetabulum affect joint stability?
    It provides greater protection against displacement
  • What is the role of ligaments in joint stability?
    They maintain bones in the correct relationship
  • How do ligaments check movement in joints?
    They resist movements beyond normal limits
  • What type of tissues are ligaments?
    Fibrous tissues
  • What is the role of muscular arrangement in joint stability?
    They contribute to stability in weak joints
  • Which muscles are part of the rotator cuff?
    Subscapularis, supraspinatus, infraspinatus, teres minor
  • How does fascia vary in the body?
    It varies from thin membranes to tough tissue
  • What role does atmospheric pressure play in joint stability?
    It mainly affects the hip joint
  • How do the shapes of articular surfaces affect range of motion?
    More congruent surfaces restrain motion
  • What is the effect of ligaments on joint motion?
    They stabilize without limiting too much motion
  • How does hamstring tightness affect hip flexion?
    It acts as an antagonist during the motion
  • Which body types usually have greater flexibility?
    Mesomorph and ectomorph
  • How does body build affect flexibility?
    Bulk of tissue can limit certain actions
  • How do personal exercise habits influence range of motion?
    Training for flexibility increases range
  • What factors affect range of motion?
    Age, heredity, and fitness state
  • How does pelvic tilting relate to hip movement?
    It affects the apparent range of motion
  • How does the method of joint movement affect range of motion?
    Active and passive movements affect ROM
  • What is a body link?
    It extends between two joint axes
  • What is the purpose of link systems in the body?
    They determine permitted motion types
  • What is a kinematic chain?
    A combination of successively arranged joints
  • What are the two types of kinematic chains?
    Open and closed kinematic chains
  • How does an open kinematic chain differ from a closed one?
    Distal segment is free in space
  • What happens when a joint in a kinematic chain is restricted?
    Distal segments lose versatility
  • What are the factors affecting joint stability?
    • Shape of bony structure
    • Ligaments arrangement
    • Muscular arrangement
    • Fascia
    • Atmospheric pressure
  • What are the factors affecting range of motion?
    • Shape of articular surfaces
    • Ligaments and muscles' restraining effects
    • Body build
    • Personal exercise habits
    • Current state of physical fitness
    • Age
    • Heredity
  • What is the relationship between body link systems and kinematic chains?
    • Body links extend between joint axes
    • Kinematic chains consist of interconnected joints
    • Both determine motion types and calculations