Dorsal nucleus of the vagus nerve

Definition

The dorsal nucleus of the vagus nerve is a cluster of neurons located in the medulla oblongata that plays a critical role in autonomic control, particularly in parasympathetic output to the heart, lungs, and digestive tract. It acts as a major integration and relay center for visceral sensory information and autonomic responses affecting these organs.

Related terms

Autonomic nervous system: The part of the nervous system responsible for controlling bodily functions not consciously directed, such as breathing, heartbeat, and digestive processes.

Parasympathetic nervous system: A division of the autonomic nervous system that conserves energy by slowing down the heart rate and increasing intestinal and gland activity.

Vagus nerve: The tenth cranial nerve that innervates multiple organs, including those in the thorax and abdomen, playing a crucial role in transmitting sensory information from the viscera to the brain