Cough center of the medulla oblongata

The **cough center of the medulla oblongata** refers to a functionally defined, but anatomically indistinct, region within the brainstem (specifically, the medulla oblongata) that serves as the primary central integrator of the cough reflex[1][2]. It receives sensory input from peripheral cough receptors (primarily via the vagus nerve), processes these signals through a diffuse neuronal network that includes the nucleus of the solitary tract and the pre-Bötzinger complex, and coordinates a motor response via the vagus, phrenic, and spinal motor nerves to the respiratory muscles[1][2]. The cough center is not a single molecular target or receptor, but an overlapping neural network within the respiratory and reflex control centers of the medulla, sharing pathways with other vital functions like breathing and swallowing[1][2]. Many centrally acting antitussive drugs (such as opioids and dextromethorphan) act by reducing the excitability of this neural network, suppressing the cough reflex. Because it is not a discrete molecule, protein, or receptor, but rather a physiological network or circuit, it does not fit the classical definitions of a drug target such as receptor, enzyme, or ion channel[1][2].

Other names

Cough centerMedullary cough centerCough reflex integration center

Inhibition of neuronal activity in central cough reflex circuitry; Modulation of afferent or efferent signaling in the cough arc