26+ Muscular System Trapezius Muscle Anatomy
     26+ Muscular System Trapezius Muscle Anatomy . The actions of the trapezius muscle is largely dependent on the direction of the fibres that are contracting. Learn about its function, origin, insertion and innervation and find out more about the back.                                                          Trapezius Muscle High Resolution Stock Photography And Images Alamy from c8.alamy.com                           It is flat and broad, covering the upper back and part of the neck and shoulders, but it's actually part of the thorax. What to know before harvesting the. It is the most superficial of all the back muscles.           It permits movement of the body, maintains posture and circulates blood throughout the body.      During muscular contraction, a muscle may shorten, lengthen or stay the same. The muscular system consists of about 700 muscle organs that are typically attached to bones dorsiflexion/plantarflexion. The upper fibres can be described as medial elevators, ...