The ventricular action potential has a long refractory period so that the mechanical response of the ventricle will be discrete; one coordinated mechanical response per electrâ¦ical activation sequence. Otherwise, with additional electrical stimuli, the mechanical responses would summate producing a prolonged contraction.
Microfracture Technique. Overview. Microfracture is a surgical technique that has been developed to treat chondral defects, which are damaged areas of articular cartilage of the knee. It is a common procedure used to treat patients with full thickness damage to the articular cartilage that goes all the way down to the bone.
According to Wikipedia, Microdermabrasion is. â¦also referred to as mechanical exfoliation or micro-resurfacing, microdermabrasion is a method for facial rejuvenation that uses a mechanical medium for exfoliation along with adjustable suction to remove away the outermost layer of dead skin cells from the epidermis.he tube also vacuums back dead skin cells and used micro crystals. The crystal flow starts as soon as the microderm abrasion wand touches your skin. The doctor slowly moves the wand across your entire face and not just on treated areas, so that you donât experience inconsistence in skin texture or color.