4.5 Muscles

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

A type of freely moveable joints is:

1. coccyx
2. intervertebral discs
3. fontanelle
4. hinge joint

4.5 Muscles

Muscles

Voluntary or smooth muscles are found:

1. in the heart
2. surrounding the stomach
3. attached to the skeleton
4. only if you look closely

Voluntary / skeletal muscles:

• work in antagonistic pairs
• shorten during contraction
• become longer during relaxation
• attached to bones by tendons - make joints move
  

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End of lesson:

• Start HW 4.5