Louisa Burns used both animal and human models to demonstrate viscerosomatic relationships between the thyroid and somatic dysfunction at which levels?

Louisa Burns used both animal and human models to demonstrate viscerosomatic relationships between the thyroid and somatic dysfunction at which levels?

• A. C4-C7
• B. C1-C3
• C. T1-T4
• D. L2-L4

Answer: (A)

Viscerosomatic reflexes show that dysfunction in a visceral organ can produce predictable somatic findings in specific spinal segments. Louisa Burns demonstrated for the thyroid that the most consistent somatic changes appear in the mid-to-lower cervical spine, particularly the segments around C4 through C7. In her animal and human studies, irritation or dysfunction of the thyroid was associated with hypertonicity and somatic dysfunction in the paraspinal tissues and joints of these cervical levels. This pattern reflects the segmental relationships between visceral input and somatic tissue in that region. Levels outside this cervical range—such as the upper neck, thoracic, or lumbar regions—do not align as closely with thyroid viscerosomatic patterns, so C4–C7 is the best match for this relationship.

Viscerosomatic reflexes show that dysfunction in a visceral organ can produce predictable somatic findings in specific spinal segments. Louisa Burns demonstrated for the thyroid that the most consistent somatic changes appear in the mid-to-lower cervical spine, particularly the segments around C4 through C7. In her animal and human studies, irritation or dysfunction of the thyroid was associated with hypertonicity and somatic dysfunction in the paraspinal tissues and joints of these cervical levels. This pattern reflects the segmental relationships between visceral input and somatic tissue in that region. Levels outside this cervical range—such as the upper neck, thoracic, or lumbar regions—do not align as closely with thyroid viscerosomatic patterns, so C4–C7 is the best match for this relationship.