ORIGIN AND ANTIMERIC DISTRIBUTION OF THE FEMORAL NERVES IN NEWBORNS GOATS OF THE SAANEN BREED

The femoral nerves were studied in newborn goats of Saanen breed (22 males and 11 females) that were collected after natural death and fixed with 10% formaldehyde solution. In males the femoral nerve arose from the ventral spinal branches of L4 and L5 in eight animals (36%); in six animals (27%) it arose from the ventral spinal branches of L5 and L6; in five animals (23%) it arose from the ventral spinal branches of L5; in two animals (9%) it arose from the ventral spinal branches of L4, L5 and L6 and in one animal (5%) it arose from the ventral spinal branches of L5 and L6 and the ventral spinal branches of S1. In females the femoral nerve arose from the ventral spinal branches of L4 and L5 in seven animals (64%); in three animals (27%) it arose from the ventral spinal branches of L5 and L6 and in one animal (9%) it arose from the ventral spinal branches of L4, L5 and L6. In all animals, the femoral nerves were distributed in different branches to the major and minor psoas, femoris quadriceps, sartorius and pectinius muscles.

本研究对自然死亡后采集的22只雄性、11只雌性萨能（Saanen）新生山羊的股神经（femoral nerve）开展了解剖学分析，所有标本均经10%甲醛溶液固定。雄性个体中，8只（36%）的股神经起自L4与L5的腹侧脊支（ventral spinal branches）；6只（27%）起自L5与L6的腹侧脊支；5只（23%）起自L5的腹侧脊支；2只（9%）起自L4、L5与L6的腹侧脊支；另有1只（5%）起自L5、L6及S1的腹侧脊支。雌性个体中，7只（64%）的股神经起自L4与L5的腹侧脊支；3只（27%）起自L5与L6的腹侧脊支；1只（9%）起自L4、L5与L6的腹侧脊支。所有受试个体的股神经均发出多支分支，分别支配腰大肌（major psoas）、腰小肌（minor psoas）、股四头肌（femoris quadriceps）、缝匠肌（sartorius）及耻骨肌（pectinius）。