PostBase Mini sets the postage, i.e. the price for the postal product using the chosen. mailing data (destination, type, mail piece dim ensions and additional services if appli-. cable), in conjunction with the displayed weight. Use the shortcuts to fast and easily set up a product.
Peristalsis is a distinctive pattern of smooth muscle contractions that propels foodstuffs distally through the esophagus and intestines. One group of interneurons activates excitatory motor neurons above the bolus-these neurons, which contain acetylcholine and substance P, stimulate contraction of smooth muscle above the bolus. 2  Another group of interneurons activates inhibitory motor neurons that stimulate relaxation of smooth muscle below the bolus.
A concentric contraction is a type of muscle contraction in which the muscles shorten while generating force. During a concentric contraction, a muscle is stimulated to contract according to the sliding filament mechanism.