Atlas Laterality Neutral 0°

Lower Angle Neutral 0°

Frontal Plane Neutral 0°

Short Leg Balanced

Atlas Rotation Neutral 0°

Axis Rotation Neutral 0°

Atlas / C1

Nerve pressure routes

Muscle guarding

NUCCA Biomechanics

Upper Cervical Misalignment

Educational anatomical model only. Symptom notes are not medical advice or diagnosis.

Atlas Position

Bones Skull Brain Muscles Nerve system Angle labels Human outline

Skull transparency 60% Brain transparency 18% Nerve transparency 0%

Neutral

Facet asymmetry

0% Neural irritation

0% Muscle guarding