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.
Skeletal muscle fibers are the effectors of the somatic nervous system and smooth muscle is the common effector of the autonomic nervous system. As the effectors of the somatic nervous system that controls skeletal movement muscles are arranged in antagonistic pairs. Relaxation of an effector muscle does not allow the body to return to a previous position. Antagonous contraction and relaxation by opposing muscles also stops appendages flopping about!