7Upper Cervical Specific The unique anatomy of atlas and axis.The relationship of skull to atlas.The relationship of atlas to axis.The neurology of brain (and cerebellum).The neurology of brainstem.The neurological associations between.And basically how the whole body works!
8Atlas & Axis Most complex alignment system. No locking joints. Richest array of neurological input.Gateway between brain and body.
9Coupled Motions Upper cervical motion is never isolated. In extension, occiput glides forward and posterior elements close toward each other.
16Will’s Story Over 8 years lost ability to work. Chronic daily headaches.Wore sunglasses indoors.Chronic fatigue.Loss of strength on RHS.Slow mental processing.After 25 medical practitioners, diagnosed as “psychosomatic”.
17Effects on Nervous System Small Changes. Big Problems. ↓ frequency of nerve firing to the brain.↓ oxygenated blood flow to the brain.↓ or ↑ muscle activity on one side.
18Effects on Sympathetic Tone Vascular irritation can cause ↑ activation of the neck & jaw muscles on one side.This is part of the “Tonic Neck Reflex”.
19Tonic Neck ReflexThe Tonic Neck Reflex helps to maintain postural stability by adjusting extensor muscle tone as head and neck posture changes.
20Brainstem Autocorrect Eyes try to maintain horizon & posture.TNR leads to increase stress response.Stress response changes the jaw.
21Disturbed TNR and the TMJ Temporalis muscle: may pull condyle posterior.Lateral pterygoid muscle: may pull disc anterior.Masseter muscles trigger points.TMD!
22Trigeminal Nucleus Teeth/jaw can alter the upper neck. Input from the face, teeth and TMJ feeds into CN5, processing pain and sensation.TMJ joint capsule highly innervated.
23Trigeminal NucleusThe neck can change sensation over the head, face, teeth and TMJ.CN5 neurons extend down into the cervical spine.C1-3 neurons feed trigeminal activity.
24Necks Can Change JawsAberrant reflexes create pathological TNR causing dysfunctional head posture.Changes in head posture affect mandibular position.Mandible therefore affects occlusion.
27TNR & Orofacial Symptoms PTSD (anxiety and depression).Change in facial sensation.Change in sensation over teeth.Left arm pain and reduced ROM.Left hemisphericity.Anisocoria (sluggish left pupil).Temperature dysregulation.Skin changes over left leg.