wiki skeletal system 1 - Lalor-1-2PE

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© Cengage Learning Australia 2011
KEY KNOWLEDGE

The way the neuromuscular and
musculoskeletal systems work together to
bring about movements including major
bones, muscles, joints and joint action

The various characteristics of the different
muscle types – fibre and arrangement

Isotonic, isokinetic and isometric muscle
contractions

The agonist and antagonist relationship as
related to reciprocal inhibition and the
associated use of stabilisers

The nervous control of muscles including
recruitment of motor units, fibres and types of
contraction.
KEY SKILLS

Correct use of anatomical terms related to
major bones, muscles, common joints and
their actions that bring about movements

Participate in and analyse a broad range of
movements used in sporting activities and
be able to identify key bones, muscles and
joint movements associated with those
movements.

Explain and discuss how reciprocal
inhibition works

Identify the different types of muscle fibres
and contractions responsible for a wide
range of physical activities performed at
varied intensities.
© Cengage Learning Australia 2011
© Cengage Learning Australia 2011
The musculoskeletal system
consists of:
•skeletal system (bones and joints)
•skeletal (voluntary) muscle
•ligaments (connect bones to bones)
•tendons (connect muscles to bones)
•cartilage ( shock absorbing gel between joints).
© Cengage Learning Australia 2011
Main functions of the Skeletal System
1. Protection of vital internal organs E.g. Rib cage
protects heart
2. Support E.g. Posture
3. Attachment sites for muscles
4. Storage of fuels, fats and minerals
5. Leverage for muscles E.g. Allowing movement
6. Blood cell production E.g. Red (End of long
bones) and White (Shaft of long bones)
© Cengage Learning Australia 2011
Anatomical Terms (see worksheet)
© Cengage Learning Australia 2011
© Cengage Learning Australia 2011
Basic anatomical positions
© Cengage Learning Australia 2011
Basic anatomical planes
© Cengage Learning Australia 2011
Skeletal System
© Cengage Learning Australia 2011
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