Medical Glossary

Reflex

A rapid automatic response mediated by the nervous system.

Reflux

A return or backwards flow. Regurgitation.

Respiratory Distress

Noisy congested breathing, difficulty breathing and retractions.

Reticular Formation

Groups of cells and fibers arranged in a diffuse network throughout the brain stem. They fill and connect the tracts which ascend and descend through this area. They are important in controlling or...

Rhomboencephalon

A primary division of the embryonic brain which gives rise to the metencephalon and myelencephalon. It includes the pons, cerebellum, and medullar oblongata. Sometimes called the hindbrain.
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