tonic neck reflexes

tonic neck reflexes

[′tän·ik ′nek ′rē‚flek·səz]
(physiology)
Reflexes in which rotation or deviation of the head causes extension of the limbs on the same side as the chin, and flexion of the opposite extremities; dorsiflexion of the head produces increased extension tonus of the upper extremities and relaxation of the lower limbs, and ventroflexion of the head, the reverse; seen normally in incomplete forms in the very young infant, and thereafter in patients with a lesion at the midbrain level or above.
References in periodicals archive ?
1) These theories vary from myofascial (17-25) and myological (26) interrelationships, referred pain patterns (27-29), facilitating tonic neck reflexes involving intersegmental spinal pathways, (30) as well as postural righting mechanisms involving the cervical spine as well as proprioceptive and plantar mechanoreceptors (31).
Effect of cervical spinal adjustments on lumbar paraspinal muscle tone: evidence for facilitation of intersegmental tonic neck reflexes.