Tulang lumbar iku pérangan telu lan paling ngisor saka kolom balung mburi, dumadi saka 5 vertebra lumbar, L1-L5. Padha ditemokake ing punggung ngisor, ndhukung bobot awak lan nyedhiyakake keluwesan lan gerakan. Iki sing paling gedhé ing antarane kabeh balung sing ditemokake ing utomo.
Endi Lumbar Vertebrae Dumunung
Papane ana ing sisih ngisor, wiwit saka utomo thoracic kaping 12 lan nganti tekan sakrum.
Fakta Cepet
Tipe
Balung ora teratur
Ana pira ing awak manungsa
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Artikulasi karo
Saben-saben, lan karo pelvis
Fungsi
Bobot Badan Pendukung: Vertebra lumbar ndhukung rong bagéan ndhuwur kolom vertebral – vertebra serviks lan thoracic – lan sirah. Akibaté, tanggung jawab kanggo ndhukung bobot awak kabeh, lan mbagekke bobot saka awak ndhuwur kanggo sikil. Iki uga minangka bagéan saka kolom vertebral sing tanggung jawab kanggo nanggung bobot nalika sampeyan ngangkat utawa nggawa barang apa wae.
Ngidini Gerakan: Iki nyambungake awak ndhuwur menyang pelvis, lan ngidini gerakan awak kaya mlengkung, rotasi, lan fleksi punggung ngisor. L4 lan L5 tanggung jawab utamane.
Nglindhungi Sumsum Tulang Belakang lan Saraf: Sumsum balung mburi, sing diwiwiti saka dasar tengkorak, mungkasi ing utomo lumbar, khusus ing L1. Vertebra lumbar nyedhiyakake casing protèktif kanggo kabeh akar saraf spinal (cauda equina) ing mburi sumsum tulang belakang. Saraf iki banjur mlayu mudhun menyang sikil lan sikil kanggo ngontrol gerakan lan sensasi.
Anatomi
Iki sing paling gedhé lan paling kuat saka kabèh vertebrae, kanthi balung individu duwé struktur sing khas.
Apa Tulang Triquetrum Triquetrum utawa balung triquetral
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