Define red reflex. red reflex synonyms, red reflex pronunciation, red reflex translation, English dictionary definition of red reflex. n. Contraction of the pupil of the eye in response to an increase in light. American Heritage® Dictionary of the Eng
It is possible that a brainstem dysfunction activates the trigeminovascular system bilaterally, leading to sensory antidromic and parasympathetic reflex firing.Maranhao Filho PAVincent MBCephalalgiaMaranhao-Filho PA, Vincent MB. The mystery of two red ears: A bilateral simultaneous case. Ceph- alalgia....
The red nucleus (RN) is a large subcortical structure located in the ventral midbrain. Although it originated as a primitive relay between the cerebellum and the spinal cord, during its phylogenesis the RN shows a progressive segregation between a magnocellular part, involved in the rubrospinal s...
reflexIn a previous study, we found that electrical and chemical stimulation of the red nucleus (RN) suppressed the high-threshold afferent-evoked jaw-opening reflex (JOR). It has been reported that the RN receives bilaterally projection fibers from the raphe magnus nucleus (RMg), and that ...