Which Is an Action of the Erector Spinae Group

question 44

Multiple Choice

Which is an action of the erector spinae group?

• A)posterior tilt of the pelvis at the lumbosacral joint
• B)flexion of the trunk and neck at the spinal joints
• C)contralateral rotation of the trunk and neck at the spinal joints
• D)ipsilateral rotation of the trunk and neck at the spinal joints

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Definitions:

U-shaped Curve

A graphical representation showing a relationship where initial decreases lead to a minimum point, followed by subsequent increases.

Total Cost Curve

A graphical representation that shows the total cost of producing different levels of output, illustrating how costs change with production volume.

Marginal Cost Curve

A graphical representation that shows how the cost of producing one additional unit of a good varies as the quantity of the good produced changes.

Average Fixed Cost Curve

A graphical representation showing the average fixed cost per unit of output, which decreases as production increases due to spreading fixed costs over more units.