According to the "Homewood" definition of subluxation, what does it alter?

The "Homewood" definition of subluxation emphasizes the alteration of normal anatomical relationships. In the context of chiropractic theory, a subluxation is typically described as a misalignment or dysfunction of the vertebrae, which can lead to changes in the relationship between bones and surrounding structures. This misalignment can affect the overall biomechanics of the spine and the nervous system.

By focusing on the alteration of anatomical relationships, this definition highlights the structural component of subluxations and underscores their potential effects on the body's functioning and health. Correct anatomical relationships are essential for proper movement and nervous system function, so when they are disrupted, it can lead to a range of health issues.

The other options relate to broader concepts of health and function but do not capture the specific focus of the Homewood definition as clearly as the alteration of normal anatomical relationships does. While joint function, nutritional balance, and muscle tone are important aspects of overall health, they are not the primary focus of the Homewood definition regarding subluxation.