Brain natriuretic peptide (BNP), also known as B-type natriuretic peptide, is a hormone secreted by cardiomyocytes in the heart ventricles in response to stretching caused by increased ventricular blood volume. BNP is named as such because it was originally identified in extracts of pig brain.
How your bladder works. Your bladder is controlled by a complex system of nerves from your autonomic nervous system (parasympathetic and sympathetic), as well as by your spinal nervesare nerves that enter and exit the spinal cord, transmitting sensory and motor information to and from the brain.
The sympathetic nervous system and adrenomedullary hormonal system are major components of the autonomic nervous system. The main sympathetic neurotransmitter for cardiovascular regulation is norepinephrine, whereas the main sympathetic neurotransmitter for sweating is acetylcholine.ympathetic nervous system. A major component of the autonomic nervous system. The main sympathetic neurotransmitter for cardiovascular regulation is norepinephrine. The main sympathetic neurotransmitter for sweating is acetylcholine.