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darah 04 - Darah Dr Jumatil Fajar MHlthSc Pendahuluan Darah...

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Darah Dr. Jum’atil Fajar, MHlthSc
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Pendahuluan Darah, cairan vital yang ditemukan dalam tubuh manusia yang menyediakan makanan yang penting bagi seluruh organ dan jaringan tubuh dan membuang bahan-bahan yang tidak berguna.
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Pendahuluan Manusia dewasa memiliki 5-6 liter darah, sekitar 7-8 persen dari berat badan. Volume darah dalam tubuh individu berfluktuasi. Volume darah berkurang selama dehidrasi (lari maraton) Volume darah meningkat pada kehamilan, ketika darah ibu dibutuhkan untuk membawa oksigen dan makanan tambahan ke bayi.
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Peran Darah Membawa oksigen dari paru-paru ke seluruh jaringan tubuh Membawa produk yang tidak berguna, terutama karbondioksida, kembali ke paru- paru
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Peran Darah Membawa produk yang tidak berguna, yang dihasilkan selama metabolisme, seperti urea dan asam urat, ke ginjal Membawa hormon Bertanggung jawab untuk aktivitas dari sistem imun, membantu melawan infeksi dan penyakit Membawa sistem koagulasi
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Peran Darah Menjaga kestabilan suhu tubuh Menyalurkan protein, lemak dan karbohidrat ke jaringan
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Kepanasan Pembuluh darah berdilatasi Volume darah yang melalui kulit meningkat Panas menghilang melalui kulit, secara efektif menurunkan suhu tubuh Kulit kelihatan kemerahan
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