Abstract
In the 10 right biceps brachii muscles from human adult, complete mid-point crosssections were made, and these were photomicrographed on overlapping fields. By mean of these photomicrographs, individual fiber count, sampling count and measurring of fiber diameter were carried out.
The results obteined were as follow.
1) The total number of the muscle fibers in each cross-sections were between 323, 942 .and 114, 448, and these were classified in 3 groups (much, medium and few) . The “much” and “medium” groups were correspond to the figures in the athletic body build and it's contrast cases by ETEMADI and HOSSEINI respectively, “few” group was to its in the seniles.
2) The fiber number in 1 mm2 of the muscle cross-section were between 1423 and 458, which were generally higher than its in the cases by BARIN-BAUM.
3) The diameter of the muscle fibers in our cases were generally larger in male than in female. As compared with the cases by ETEMADI and HOSSEINI, these were smaller Than it of athletic body build and equal or larger than its of the contrast cases.
4) Interrelationship between these results and a few individualities in each subjects were also studied.
