A licensed vocational nurse's duties revolve around basic patient care. LVNs monitor their patients' vital signs and keep their charts up to date. They assist patients in basic hygiene and personal care, including bathing and dressing them and helping them eat if necessary.
Accessory muscles refers to muscles that assist, but do not play a primary role, in breathing. There is some controversy concerning which muscles may be considered accessory muscles of inhalation.
agonist muscle prime mover (see agonist). antagonist muscle muscles or muscle groups which neutralize action of another muscle or muscle group (see antagonist; muscle contraction).cardiac muscle; myocardium striated heart muscle.ontrolled movements involve two opposing muscles: the agonist muscle produces the main action, while the antagonist muscle produces the opposite action to a lesser degree. The balance between agonist and antagonist muscles allows precise control of the final action. See also: muscle.