Betaine is a byproduct of sugar beet processing. Betaine works by preventing the build-up of an amino acid called homocysteine.This amino acid can harm blood vessels and contribute to heart disease, stroke, or circulation problems.etaine is not a cure for homocysteinuria. Betaine may also be used for purposes not listed in this medication guide. Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.
A smooth muscle is excited by external stimuli, which causes contraction. Each step is further detailed below. Inducing stimuli and factors. Smooth muscle may contract spontaneously (via ionic channel dynamics) or as in the gut special pacemakers cells interstitial cells of Cajal produce rhythmic contractions.
The contraction of both smooth muscle and cardiac muscle is controlled by motor neurons of the autonomic system. 1  The first, the preganglionic neurons, arise in the CNS and run to a ganglion in the body.2  postganglionic neurons, which run to the effector organ (cardiac muscle, smooth muscle, or a gland). 3  sympathetic nervous system and the. 4  parasympathe contraction of both smooth muscle and cardiac muscle is controlled by motor neurons of the autonomic system. 1  The first, the preganglionic neurons, arise in the CNS and run to a ganglion in the body. 2  Here they synapse with.