2-Sel darah dan sistem limfatik.pptx - SEL DARAH DAN SISTEM...

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Disusun oleh : Zumrotul Muniroh (P27824117058) Roslyne Farah V. (P27824117060) Shabrina Mutya Sari (P27824117063) SEL DARAH DAN SISTEM LIMFATIK
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SEL DARAH SISTEM LIMFATIK MENU
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DARAH Pengertian Darah adalah cairan di dalam pembuluh darah yang mempunyai banyak fungsi bagi tubuh.
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Fungsi Darah (secara umum) : 1. Sebagai alat pengangkut (sel darah merah) 2. Proteksi tubuh terhadap bahaya mikroorganisme (sel darah putih) 3. Proteksi terhadap sel darah dan pendarahan (tro mbosit) 4. Mempertahankan temperatur tubuh
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Fungsi Darah (secara khusus) : 1. Transportasi oksigen, karbohidrat dan metabolit 2. Mengatur keseimbangan asam dan basa 3. Mengatur suhu tubuh dengan cara konduksi (han taran) 4. Membawa panas tubuh dari pusat produksi pana s (hepar dan otot) untuk di distribusikan ke selur uh tubuh 5. Pengaturan hormon dengan membawa dan meng hantarkan dari kelenjar ke sasaran
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KOMPENEN DARAH Kompon en Cair Kompon en Padat BACK
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Komponen Padat Sel Darah Merah (eritrosit) Keping Darah (trombosit) Sel Darah Putih (leukosit) BACK
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Eritrosit Ciri-ciri sel darah merah : Bentuk sel darah merah seperti cakram atau bikonka f dengan ukuran 0,007 mm Tidak mempuyai inti Banyaknya kira-kira 4,5-5 juta per mm3 Warnanya kuning kemerah-merahan Sifatnya elastis sehingga dapat berubah bentuk sesu ai dengan pembuluh darah yang dilalui Tidak dapat bergerak Jumlah hemoglobin dalam darah rata-rata 15 gram Dibentuk di sumsum tulang
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Fungsi sel darah merah : Eritosit membawa oksigen dari paru-paru ke jaringan dan karbon dioksida (CO2) dibawa dari jaringan ke p aru untuk dikeluarkan melalui jalan pernafasan. BACK
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Leokosit Ciri-ciri sel darah putih : Bening dan tidak berwarna Ukurannya lebih besar dari eritrosit Dapat berubah (elastis) dan bergerak menggunakan per antara kaki palsu (pseudopodia) Mempunyai bermacam-macam inti sel, banyaknya antar a 4-10rb/mm3
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