vertebrae lumbal, sacral, coccygea, costae, sternum
TRANSCRIPT
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OSTEOLOGI VERTEBRALIS II
(LUMBALIS, SACRUM, COCCYGEA, STERNUM & COSTAE)
Oleh:
drh. Herlina Pratiwi, M.Si
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Columna vertebralis
Vertebrae cervicalis
Vertebrae thorachalis
Vertebrae lumbalis
Vertebrae sacralis
Vertebrae coccygealis
thorax
costae sternum
Columna
vertebralis
thorax
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VERTEBRAE LUMBALIS (V.L.)
Corpus pendek dan tebal, tapi lebih panjang dari
V.T.
Bentuknya seragam
Tidak memiliki fovea costalis
Processus spinosusnya pendek, mengarah
craniodorsal
Processus transversus (processus costalis) flat dan
memanjang ke arah lateral
Gerakan ke arah dorsal dan ventral, lateral tidak
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Khas
processus transversus: menjulur panjang dan pipih
Processus transversus pertama paling pendek, yang
paling panjang umumnya ketiga atau keempat pada
sebagian besar hewan domestik, kec. pada carnivor (V.L 5
atau 6)
Anjing runcing (processsus costiformis)
Kuda 2 ruas terakhir
- Processus transversus V.L. 5 & 6 Facies
intertransversarius
- V.L. 6 facies articularis sacrotransversarius (untuk
alae sacrealis) spatium interarcuale lumbosacral
processus acessorius: merupakan taju tambahan antara
processus transversus dan processus spinosus
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Os. V.L. 6 Kuda (cranial)
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Processus spinosus tegak dan pendek
Processus articularis cranialis tipe arcus
Processu articularis caudalis tipe radius
Processus mamilaris penyatuan proc. Articularis
cranialis & proc. Articularis caudalis dari 2 ruas
yang membentuk rangkaian sendi
flexibel
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Os. V.L. (caudal)
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VERTEBRAE SACRALIS (V.S.)
Penyatuan ruas2 vertebrae
Os V.S 1 alae sacralis (pelebaran proc. Transversus membentuk sayap) pada kuda berarticulasi dengan V.L. 6
Facies auricularis kuda kearah dorsal, sapi kearah caudodorsal, anjing kearah lateral.
Terbentuk bungkul pada alae: tuberositas alae
Processus spinosus pendek dan condong ke caudal
Penyatuan taju: crista sacralis mediana
Kanan-kiri dasar crista membentuk sulcus untuk alur arteri: foramen sacralis dorsalis
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Corpus V.S 1 craniolateral promotorium
Ventral corpus linea transversae (terdapat
foramen sacralis ventralis di lateralnya)
Proc. Articularis cranial + proc. Articularis caudal
crista sacralis intermedia
Facies articularis dorsal os Illium
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V.S. Kuda (ventral)
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V.S. Kuda & Sapi
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VERTEBRAE COCCYGEALIS (V.C.)
= vertebrae caudalis
4 tipe bentuk yang berbeda:
3 ruas pertama: ciri vertebrae lengkap
Ruas 4 dan 5: proc. Spinosus dan transversus
memendek (+) proc. Haemaux (proc. Spinosus ventralis:
melindungi sulsus a. coccygea medialis)
Ruas 6-9: tidak berbeda dengan ruas 4 kec bentukan
arcus di dorsal corpus tidak menutup
Ruas 10 ke belakang: berbentu silindris
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V.C. Anjing
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COSTAE
Menyusun dinding lateral cavum thorax
Tersusun secara berpasangan dan dipisahkan
antara satu costae dengan costae yang lain melalui
spatium intercoatsalis
Terdiri atas Os costae dan Cartilago costae yang
membentuk symphysis (costochondral junction)
Bagian dorsal os costae membentuk articulasi
dengan vertebrae thorachalis, sedangkan bagian
cartilago costae berarticulasi dengan os sternum
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Costae 1 sampai 7/8 secara langsung berarticulasi dengan sternum (costae sternal/costae verae), sedangkan sisanya berarticulasi secara tidak langsung dengan cartilago costae yang ada di depannya membentuk arcus costae (costae asternal/costae spuriae)
Costae terakhir tidak menempel pada cartilago costae (melayang/costae fluctuantes) pada anjing dan kucing pasangan costae terakhir selalu melayang (pada Anjing/carnivora & manusia)
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Jumlah costae berkaitan dengan jumlah
vertebrae thorac
Carnivor: 12-14 pasang (sternal 9: asternal
4)
Babi: 13-16 pasang (sternal 7: asternal 7/8)
Ruminan: 13 pasang (sternal 8: asternal 5)
Kuda: 18 pasang (sternal 8: asternal 10)
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Bagian penyusun costae
Caput costae facies articularis capitis costae + fovea costalis cranialis & fovea costalis caudalis vertebrae thoracalis
Collum costae facies articularis tuberculi costae + processus transversus vertebrae thoracalis
Tubercukum costae
Cospus costae angulus costae, sulcus costalis di bagian caudal (perlekatan pembuluh darah dan saraf
Cartilago costalis
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Costae anjing lebih melengkung dibanding pada
mamalia domestik
Permukaan cranial rata, sedangkan permukaan
caudal membulat
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STERNUM
Penyatuan (syncondrosis) 6-8 ruas tulang
Manibrum sterni
Cospus sterni silinder pada carnivor, datar dan luas pada ruminan, memiliki crista sterni pada kuda
Incissura costalis (dorso lateral) persendian dengan cartilago costae
Kuda: cartilage cariniformis/carina sterni (crista ventralis yang runcing)
Processus xiphoideus (ventral arcus costae)
cartilago xyphoidea (caudal)
Mensuport bagian cranial dari ventral abdomen dan berkaitan dengan linea alba
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Jumlah:
Anjing: 8-9
Ruminan: 7
Kuda: 7/8
Babi: 6
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TERIMA KASIH
SELAMAT BELAJAR