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In your trunk twist the lumber vertebrae mostly take part. In this the facet joints are used. The orthopedic surgeons use the term, facet joint. The anatomists call it as zygapophyseal joints.

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βˆ™ 10y ago
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βˆ™ 5mo ago

The prime mover for trunk rotation is the obliques, specifically the internal and external oblique muscles. These muscles run along the sides of the abdomen and are responsible for producing the twisting motion of the trunk.

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βˆ™ 14y ago

Cartilaginous joint - A slightly movable joint. It is the joint in your spine and your spine does the trunk rotation.

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βˆ™ 15y ago

the epidephernepheral

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βˆ™ 12y ago

the spine

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Q: What is the prime mover for rotation of trunk?
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