The most appropriate site for an intramuscular injection for a child of 2 years age is the anterolateral aspect of the thigh or the deltoid muscle of the upper arm.
Muscle has been defined as the part of the body which is made up of bundle that contain tissue as well as action potential travels along with the nerves to the muscle. The beginning of the muscle contraction has been occurs with signal generated from the nervous system. There are mainly two types of muscle contraction and the situation occur when a muscle contracts and a change in size takes place.
Isotonic concentric contraction has the type of muscle contraction in which the muscle shortening has to be taken place. Isotonic eccentric contraction has the type of muscle contraction in which the muscle have been lengthening whilst it is the under tension.
Therefore, the most appropriate site for an intramuscular injection for a child of 2 years age is the anterolateral aspect of the thigh or the deltoid muscle of the upper arm.
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