Dorsal respiratory group (DRG)

Definition

The dorsal respiratory group is a cluster of neurons located in the medulla oblongata that plays a crucial role in initiating and regulating the basic rhythm of breathing. These neurons primarily control the inspiratory muscles, especially the diaphragm, for inhalation.

Related terms

Medulla Oblongata:

The part of the brainstem that acts as a control center for autonomic functions such as breathing, heart rate, and digestion.

Diaphragm:

A major muscle involved in the breathing process that contracts to allow inhalation by expanding the thoracic cavity.

Inspiratory Muscles: Muscles involved in inhalation, including the diaphragm and intercostal muscles, which work together to expand the chest cavity and draw air into the lungs