The lumbar dorsal rami of the wild pig : the intermediate branch
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Tarih
2014
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
This study has documented the intermediate branch of the dorsal rami of the spinal nerves in the lumbar region of 4 adult wild pigs. The lumbar spinal nerves at the L1–L4 levels lef the vertebral canal through the intervertebral foramen. Upon the dissection of the 32 dorsal rami at these levels, 24 were displayed to construct 3 discrete branches while the remaining 8 were observed to form 2 typical branches. The dorsal rami were remarkably short, giving their branches in a fan-like spreading fashion. The lateral branches sent 2 to 3 smaller subbranches to the iliocostalis lumborum muscle, then became the cutaneous nerve. The medial branch innervated the medial component of the intertransversal and the multifdus muscles. The intermediate branch directed into the longissimus lumborum muscle, ramifying there and sending no cutaneous branches to the skin area. Four out of 8 dorsal rami dissected at L5 sent of the intermediate branch with roughly similar patterns and distributions to those seen at L1–L4. The dorsal branches at L6 were relatively longer, advanced dorsally, giving a constant branch, presumably the intermediate branch, to the caudal edge of the longissimus lumborum muscle. It then coursed upward through the subcutaneous fascia as the cutaneous nerve.
This study has documented the intermediate branch of the dorsal rami of the spinal nerves in the lumbar region of 4 adult wild pigs. The lumbar spinal nerves at the L1–L4 levels lef the vertebral canal through the intervertebral foramen. Upon the dissection of the 32 dorsal rami at these levels, 24 were displayed to construct 3 discrete branches while the remaining 8 were observed to form 2 typical branches. The dorsal rami were remarkably short, giving their branches in a fan-like spreading fashion. The lateral branches sent 2 to 3 smaller subbranches to the iliocostalis lumborum muscle, then became the cutaneous nerve. The medial branch innervated the medial component of the intertransversal and the multifdus muscles. The intermediate branch directed into the longissimus lumborum muscle, ramifying there and sending no cutaneous branches to the skin area. Four out of 8 dorsal rami dissected at L5 sent of the intermediate branch with roughly similar patterns and distributions to those seen at L1–L4. The dorsal branches at L6 were relatively longer, advanced dorsally, giving a constant branch, presumably the intermediate branch, to the caudal edge of the longissimus lumborum muscle. It then coursed upward through the subcutaneous fascia as the cutaneous nerve.
This study has documented the intermediate branch of the dorsal rami of the spinal nerves in the lumbar region of 4 adult wild pigs. The lumbar spinal nerves at the L1–L4 levels lef the vertebral canal through the intervertebral foramen. Upon the dissection of the 32 dorsal rami at these levels, 24 were displayed to construct 3 discrete branches while the remaining 8 were observed to form 2 typical branches. The dorsal rami were remarkably short, giving their branches in a fan-like spreading fashion. The lateral branches sent 2 to 3 smaller subbranches to the iliocostalis lumborum muscle, then became the cutaneous nerve. The medial branch innervated the medial component of the intertransversal and the multifdus muscles. The intermediate branch directed into the longissimus lumborum muscle, ramifying there and sending no cutaneous branches to the skin area. Four out of 8 dorsal rami dissected at L5 sent of the intermediate branch with roughly similar patterns and distributions to those seen at L1–L4. The dorsal branches at L6 were relatively longer, advanced dorsally, giving a constant branch, presumably the intermediate branch, to the caudal edge of the longissimus lumborum muscle. It then coursed upward through the subcutaneous fascia as the cutaneous nerve.
Açıklama
Anahtar Kelimeler
Ziraat, Sütçülük ve Hayvan Bilimleri
Kaynak
Turkish Journal of Veterinary and Animal Sciences
WoS Q Değeri
Scopus Q Değeri
Cilt
38
Sayı
1
