Muscles Types of Contraction

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Across
  1. 3. During an Isometric contraction there is an increase in muscle tension but there is no change in muscle __________
  2. 6. _____ ________ _______ (or dexterity) is the coordination of small muscles, in movements, usually involving the synchronisation of hands and fingers with the eyes.
  3. 8. Shortening is a Isotonic ___________ contraction
  4. 11. ____________ contraction is where the muscle is exerting force but no change in length occurs. A Static Contraction eg holding a set position
  5. 12. On the contrary, if a person is walking slowly, they only need low levels of force so only use ____ __ muscle fibres (Slow Twitch).
  6. 13. In a Concentric contraction the _______ shortens to develop tension
  7. 14. Lengthening is a Isotonic ___________ contraction
  8. 17. Gross Motor Skills are skills that develop through using the ______ _______ of the body in a coordinated and controlled way
Down
  1. 1. Each Motor Unit will consist of the same muscle _______ types (Fast or Slow Twitch).
  2. 2. Concentric contraction Occurs in the _________ muscle and the Origin & Insertion move closer together
  3. 4. Muscles that need to produce ‘Fine’ movements such as the eye have less muscle fibres per _____ _____
  4. 5. Larger muscles like the Quadriceps will have more muscle fibres per Motor Unit to produce _______ Movements
  5. 7. ___________ contraction is where a change of length occurs
  6. 9. Eccentric contractions also occur in the agonist muscle and the Origin & __________ moves further apart
  7. 10. The Nerve that connects with a muscle fibre, the _____ ______, only stimulates a part of that muscle
  8. 15. When a large force is needed such as heavy lifting then ____ ____ fibres are recruited.
  9. 16. Twitch All muscle fibres within a Motor Unit are the same type _____ ______ or Fast Twitch, they never mix.