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alat pernapasan manusia

oke saja

oktafds
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alat pernapasan manusia

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  1. ALAT PERNAPASAN MANUSIA oktafds@yahoo.com ; oktafds@gmail.com

  2. Pengertian Bernapas : • Bernapas adalah menghirup udara dan menghembuskan udara. • Gas yang dihirup : gas oksigen • Gas yang dihembuskan : gas karbondioksida oktafds@yahoo.com ; oktafds@gmail.com

  3. Alat pernapasan manusia : • Hidung • Tenggorokan (trakea) • Paru-paru (pulmo) oktafds@yahoo.com ; oktafds@gmail.com

  4. HIDUNG • Fungsihidung: salurantempatmasukdankeluarudarapernapasan • Ronggahidungterdapat : • Rambut • Selaputlendir • Pembuluhdarah oktafds@yahoo.com ; oktafds@gmail.com

  5. Fungsirambuthidungdanselaputlendir : • Menyaringudaramasuk agar bebasdebudankuman • Fungsiselaputlendir : • Menjagakelembabanudaramasuk • Fungsikapilerdarah: • Menjagakehangatanudaramasuk oktafds@yahoo.com ; oktafds@gmail.com

  6. Tenggorokan/trakhea • Fungsi : penghubunghidungdanparu-paru • Terdapatrambut halusuntukmenyaringudarakotor • Trakeatersusunatascincintulangrawan • Ujung trakeabercabang 2 : BRONKUS • Ujung bronkus bercabang-cabang : BRONKIOLUS oktafds@yahoo.com ; oktafds@gmail.com

  7. Paru-paru (pulmo) • Letak di atas diafragma dalam rongga dada • Paru-paru kanan : 3 gelambir • Paru-paru kiri : 2 gelambir • Dibungkus oleh selaput : PLEURA oktafds@yahoo.com ; oktafds@gmail.com

  8. Paru-paru • Di dalam terdapat : cabang-cabang bronkus = BRONKIOLUS oktafds@yahoo.com ; oktafds@gmail.com

  9. Setiap ujung bronkiolus membentuk kantung berdinding tipis = ALVEOLUS • ALVEOLUS = gelembung tipis diselimuti pembuluh darah • Fungsi ALVEOLUS = tempat terjadi pertukaran gas O2 dan CO2 oktafds@yahoo.com ; oktafds@gmail.com

  10. Agar mudah, perhatikan tayangan berikut ini! oktafds@yahoo.com ; oktafds@gmail.com

  11. Apakah ada pertanyaan? oktafds@yahoo.com ; oktafds@gmail.com

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