I found this the other day and thought what a great representation of Dermatomes it is, it’s another way to look at Dermatomes and how we have evolved how our movement output or posture has changed but our Neuro-Sensory system is grounded with our ancestors.

A dermatome is an area of the body supplied by sensory neurons that arise from a spinal nerve ganglion. Symptoms that follow a dermatome (e.g. like pain or a rash) may indicate a pathology that involves the related nerve root. Examples include somatic dysfunction of the spine or viral infection. Referred pain usually involves a specific, “referred” location so is not associated with a dermatome. Certain skin problems tend to orient the lesions in the dermatomal direction.