Postural stability of the spine is provided by:
A)Elasticity of passive restraints.
B)Interaction of passive restraints and muscle control.
C)Interaction of muscle control modulated by the central nervous system and passive restraints.
D)Muscle activity maintaining balance in the neutral zone.

Question

Quizplus · Accepted Answer

Postural stability of the spine is maintained by the interaction between muscle control (modulated by the central nervous system) and passive restraints. The passive restraints, such as ligaments and joint capsules, provide mechanical support while muscle activity provides dynamic stability. This interaction helps to maintain the spine's neutral zone, which is the small range of motion in which the spine is most stable.

Postural Stability of the Spine Is Provided By