a system of efferent dilator nerves distributed only to skeletal muscles; the existence of the system has been verified only in cats and dogs; in other species where it is not present vasodilation is achieved only by relaxation of vasoconstrictor tone. sympathetic nerves. 1. see sympathetic trunk (below).wo long ganglionated nerve strands, one on each side of the vertebral column, extending from the base of the skull to the coccyx. sympathetic trunk ganglia. ganglia situated segmentally along the paired sympathetic trunks beside the vertebral bodies.
As a summary, letâs briefly calculate how long it will take you to start a phlebotomist from scratch: 1  Preparation and application to schools: 1 month. 2  Phlebotomy training itself: 1-2 semesters, or 4 to 8 months, depending on college.
About Phlebotomist Certification. While there are currently no national certification standards for this profession, many employers prefer to hire certified phlebotomists. To qualify for certification, you generally must complete a training program in phlebotomy or have a certain number of hours of experience. Once you've completed training, you may pursue certification through any of several accredited organizations and state boards that govern phlebotomists.