Puneet Varma (Editor)

Rostral ventrolateral medulla

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The rostral ventrolateral medulla (RVLM), also known as the pressor area of the medulla, is a brain region that is responsible for basal and reflex control of sympathetic activity associated with cardiovascular function. Abnormally elevated sympathetic activity in the RVLM is associated with various cardiovascular diseases, such as heart failure and hypertension. The RVLM is notably involved in the baroreflex.

It receives inhibitory GABAergic input from the caudal ventrolateral medulla (CVLM). The RVLM is a primary regulator of the sympathetic nervous system; it sends catecholaminergic projections to the sympathetic preganglionic neurons in the intermediolateral nucleus of the spinal cord via reticulospinal tract.

Physostigmine, a choline-esterase inhibitor, elevates endogenous levels of acetylcholine by stimulation of the RVLM. Orexinergic neurons from the lateral hypothalamus output in the RVLM.

References

Rostral ventrolateral medulla Wikipedia


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