Cell group C1

Cell group C1

Belongs to the adrenaline-producing cell group.

Cell group C1, one group on the right side and one on the left side in the lower part of the medulla oblongata, is located ventrally/anteriorly in the formatio reticularis outer/lateral portion between the oliva inferior complex and the nucleus funiculi lateralis.

Cell group C1 is the largest of the adrenaline-producing cell groups. It accounts for the main outflow of adrenergic filaments both rostrally/upwards to e.g. the PAG, locus coeruleus, thalamus and hypothalamus as to the side and caudal/downwards to the nucleus solitarius, the dorsal vagus nucleus, and the nucleus intermediolateralis, the latter three target areas of major importance for the function of the autonomic nervous system .

Cell group C1 together with the C2 group forms a so-called vasopressor area that, when teased, raises blood pressure.