Abstract

The skeletal system is composed of a variety of specialized forms of supporting connective tissues, responsible for the movement of the skeleton and organs such as the globe of the eye and the tongue. It is often referred to as voluntary muscle, since it is capable of voluntary(conscious)control. n this study the effect of age on the quadriceps femoris muscle was investigated using magnetic resonance imaging(MRI). Sixteen living individuals male were examined with (MRI), divided into four groups each of four cases, in order to detect the cross sectional area (CSA) of the quadriceps femoris at the middle right thigh. The age of groups were as follows; group (A) was from 25-34 years, group (B) was from 35-44 years, group (C) was from 45-55 years, and group (D) was ،ف 55 years. It has been found, a decrease in cross sectional area (CSA), of quadriceps femoris muscle with ageing, and found that the vastus lateralis muscle was considered as a surrogate muscle, which revealed more atrophy with ageing than other members of quadriceps femoris muscle

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