Original scientific paper

Variations of formation of n. femoralis, n. obturatorius and n. ischiadicus in pigs.

Damir Mihelić ; Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Zagreb
Vesna Gjurčević-Kantura ; Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Zagreb
Siniša Markovinović ; Faculty of Veterinary Medicine University of Zagreb
Andrija Damjanović ; Faculty of Veterinary Medicine University of Zagreb
Tajana Trbojević-Vukičević ; Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Zagreb

Abstract

Research was carried out on 135 pigs from the Sljeme Farm in Sesvete during 1999. Differences in n. femoralis, n. obturatorius and n. ischiadicus were noticed in pigs with six and seven lumbal vertebra. N. femoralis emerged by connecting ventral branches of two final lumbal nerves in 65.92% of pigs, equally often in pigs with six (31.11%) lumbal vertebrae and in pigs with seven (34.81%) lumbal vertebrae. Ventral branches of final lumbal nerves in pigs with six and seven lumbal vertebrae showed n. femoralis in 26.66% of observed pigs, and somewhat more often in pigs with seven lumbal vertebrae. N. obturatorius most frequently emerged from ventral branches of final lumbal nerves in pigs with six and seven lumbal vertebrae in 66.66% of animals, and somewhat more often in pigs with seven lumbal vertebrae. Much more rarely it emerges from ventral branches of prefinal lumbal nerves more often in pigs with seven lumbal vertebrae. In pigs with six lumbal vertebrae, emergence of n. obturatorius from ventral branches of the 4th, 5th and 6th lumbal nerves was noticed in 2.96% of cases and from the ventral branch of the 5th lumbal nerve in only 1.48% of observed pigs. N. Ischiadicus demonstrated the largest variation from the most frequently described emergence. In only 19.25% cases did it emerge from the ventral branches of 5th and 6th lumbal nerves and 1st and 2nd sacral nerves, and more rarely in pigs with seven lumbal vertebrae. It was observed most frequently in the ventral branches of the two final lumbal nerves and 1st sacral nerve (52.58%), more often in pigs with seven lumbal vertebrae. Ventral branches of the final lumbal and 1st and 2nd sacral nerves participated in the emergence of 20.70% cases, and somewhat more frequently in pigs with six lumbal vertebrae. Emergence of n. ischiadicus from the ventral branches of the final lumbal and the 1st sacral nerves was noticed, more frequently in pigs with seven lumbal vertebrae.

Keywords

pig; lumbal nerve; sacral nerve

Hrčak ID:

68032

URI

https://hrcak.srce.hr/68032

Publication date:

21.8.2004.

Article data in other languages: croatian

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