<prompt> Which of the following best describes Baroreceptors?Stretch receptorLigand gated receptorChemo-receptorEnzyme receptor  <response>: Baroreceptors: - Baroreceptor system is a simple excellent example of rapidly acting control mechanism. They are present abundantly in the walls of the bifurcation region of the carotids in the neck in the wall of the aoic arch. Baroreceptor are stimulated when stretched. The carotid baroreceptors are transmitted through small Herings nerve, to the IXth nerve, in the high neck then to the nucleus tractus solitarius in the medullary area of brain stem. Signal from aoic BR in the aoic arch transmitted through the vagus nerve to same nucleus tractus solitarius of the medulla. 