Origem e distribuição dos nervos femorais em fetos de suínos (Sus scrofa domesticus Linneaus, 1758) da linhagem Pen Ar Lan

Abstract

Studied in 30 pig fetuses line Pen Ar Lan, the origin and distribution of the femoral nerve, after fixation in aqueous 10% formaldehyde. There was variation in number of the lumbar vertebrae, that were fite to seven, with a predominance of six. The femoral nerve originated in antimeres 6,66% of the ventral branch of the thirth lumbar espinal nerve (L3); in 56,66% of the fourth (L4); in 100% of the fifth (L5), in 90,00% of the sixth (L6) and in 6,66% of the seventh (L7). The related nerve showed symmetry in antimeres 86,66% and sent branches to the psoar major muscle in 85,00% of the cases, the pectineous in 96,66% and to the vast medial, lateral, intermediate and rectus femoris in antimeres 100%. In all the especimes the femoral nerve issued the safene nerve that distributed in sartorius muscle in antimeres 100%.