
Sistem Gerak Manusia
Presentation
•
Biology
•
8th Grade
•
Practice Problem
•
Hard
wiwi yulistia
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12 Slides • 0 Questions
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oleh :Wiwi Yulistia, S.Pd
SISTEM GERAK MANUSIA
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SISTEM GERAK MANUSIA
OLEH : WIWI YULISTIA
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Gerak pada Manusia
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Pengertian Bergerak
Bergerak adalah berpindah tempat dapat dilihat dengan adanya perubahan posisi dari posisi awal ke posisi akhir
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Sistem Gerak Manusia terdiri dari:
1. Rangka
2. Sendi
3. Otot
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Pengertian Rangka
Rangka adalah : sekumpulan tulang yang menyusun tubuh manusia
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Fungsi Rangka
alat gerak pasif
melindungi organ tubuh
Penopang tubuh
menegakkan tubuh
tempat pembentukan sel darah merah
tempat melekatnya otot
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Bentuk tulang
pipih contoh : tulang dada, rusuk, belikat, gelang panggul
pipa contoh : tulang paha, betis, lengan atas, hasta, pengumpil
pendek contoh : tulang belakang
tidak beraturan contoh : pergelangan kaki dan pergelangan tangan
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BENTUK TULANG
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Kelainan dan penyakit pada tulang
osteoporosis
polio
riketsia/rakitis
skoliosis
lordosis
kiposis
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Sifat tulang berdasarkan bahan penyusunnya
tulang rawan penyusunnya : kolagen/ zat perekat
tulang keras penyusunnya : kalsium/ zat kapur
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TERIMAKASIH
oleh :Wiwi Yulistia, S.Pd
SISTEM GERAK MANUSIA
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