1. Home
  2. Flashcards
  3. Preview

musculoskeletal system

  1. Name four important things bones do for the body
    • support body
    • a place for sucles to attache for movement
    • produce blood cells
    • protect vital organs (brain, heart, lungs)
  2. What is bone made of?
    • meshar - a matrix of sticky fibers called chondrin and collagen mixed with calcium phospate.
    • This combination of stretchy fibers and hard minerals make the bones strong and not brittle.
  3. What cushions the joints?
    cartilage
  4. What connects bones to bones?
    ligaments
  5. What connects muscles to bones?
    tendons
  6. What are the three types of muscle?
    • skeletal - are striated (striped)
    • smooth muscles
    • cardiac muscles
  7. Where are skeletal muscles found in the body?
    these are voluntary muscles attached to bones, used for movement
  8. Where are smooth muscles found?
    autonomic systems (involuntary)
  9. Where are cardiac muscles found?
    in the heart
  10. Is lifting voluntary or involuntary?
    voluntary
  11. Is digestion voluntary or involuntary?
    involuntary
  12. Is running voluntary or involuntary?
    voluntary
  13. Is breathing voluntary or involuntary?
    involuntary
  14. Is swallowing voluntary or involuntary?
    voluntary
  15. Is singing voluntary or involuntary?
    voluntary
  16. Is whistling voluntary or involuntary?
    voluntary
  17. Is choking voluntary or involuntary?
    involuntary
  18. Muscles operate in __________ pairs.
    opposing
  19. Muscles can only ___________ not __________.
    • pull
    • push
  20. A muscle that pulls a limb up is called a ________.
    flexor
  21. An example of a flexor muscle is the __________.
    biceps
  22. A muscle that straightens a limb is called an ____________.
    extensor
  23. An example of an extensor muscle is the __________.
    triceps
  24. Name four ways to keep your bones healthy.
    • drink milk for calcium (one of the main ingredients of bone)
    • weight-bearing exercise - strengthens bone
    • wear protective gear
    • eating enough protein and leafy greens
  25. What is a sprain?
    stretching or tearing of a ligament, the tough, fibrous tissue that connects bones to other bone.
  26. What is osteoporosis
    when bones become holey and lose strength because they break down faster than they are rebuilt
  27. What is tendonitis?
    caused by strong or repeated movement that creates friction between tendon and bone
  28. What is muscular dystrophy?
    a group of diseases which cause muscles to progressively weaken and waste away. there is no known cure
Author
angeleenie70
ID
68536
Card Set
musculoskeletal system
Description
7th grade science review
Updated

  1. Home
  2. Flashcards
  3. Preview