The following steps are involved in muscle contraction: (1) The sequence of events leading to contraction is initiated somewhere in the central nervous system, either as voluntary activity from the brain or as reflex activity from the spinal cord.
The average Mexican man weighs 165 pounds and stands 5 feet 4 1/2 inches tall, while the median figures for Mexican women are 151 pounds and 5 feet 2 inches, according to a study released by a group representing Mexico's clothing industry.
Average sizes of men and women. The wealthier a country is, the taller are its residents - at least they say so. Yet for the traditional immigration countries like Hongkong and Singapur is it obviously wrong. The biggest average body height for males is 1.83 m in the Netherlands, the smallest women with just 1.42 m can be found in in Bolivia.