Medical prefix: A prefix employed in medical terminology. Medical words are often put together, cobbled from two or more building blocks. Among these building blocks are the prefixes. Examples of prefixes used in medicine include: a-: Prefix much employed in the health sciences indicating not, without, -less as, for examples, in alexia (not read), aphagia (not eat), aphonia (not voice, voiceless).
Fibers of the middle (medial) segment of the trapezius cause an upward rotation of the scapula and this helps to elevate the arm. The medial fibers of the trapezius help squeeze the scapula together, and this is the region that is most active in the chest expander exercise.he expanders should begin in front of your torso. Raise your arms and forearms until they are parallel to the floor and maintain this arm height throughout the exercise. 2. Begin with your elbows pointing outward and with your palms facing each other and your hands at the level of your sternum.
Trapezius Muscle Posterior. The Trapezius has a trapezoidal-shape and it is a part of the posterior thorax (chest). A trapezoid is a quadrilateral with at least two parallel sides.The right and left Trapezius (which are triangular in shape) and are also flat muscles form a trapezium. It is a large superficial (close to the skin) muscle located at the back of the neck and the upper part of the thorax (chest).