fisiologi ginjal & system urinary
DESCRIPTION
Fisiologi Ginjal & System urinary. dr. Bambang Purwanto, M.Kes. Anatomi system urinary. Ginjal. Nefron & peritubular vasa. Filtrasi, reabsorbsi, sekresi. DARAH. FILTRASI di Glomerulus. FILTRAT. Reabsorbsi Di tubulus. Bermanfaat. Dibuang. Bahan tambahan. Sekresi Di Tubulus. GINJAL. - PowerPoint PPT PresentationTRANSCRIPT
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Fisiologi Ginjal & System urinary
dr. Bambang Purwanto, M.Kes
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Anatomi system urinaryAnatomi system urinary
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Ginjal Ginjal
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Nefron & peritubular vasa Nefron & peritubular vasa
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Filtrasi, reabsorbsi, sekresi
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DARAH
FILTRASI
di Glomerulus
FILTRAT
Bermanfaat Dibuang
Reabsorbsi
Di tubulus
Sekresi
Di Tubulus Bahan tambahan
URINGINJAL
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E = F – R + S
•. E : ekskresi•. F : filtrasi•. R : reabsorpsi•. S : sekresi
Pembentukan urine
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Glomerulus
GFR:Kecepatan filtrasi glomerulus
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Regulasi GFR
GFR bergantung pada :
1. tekanan arteri
2. aliran aferent
3. aliran eferent
Cafeine vasodilatasi aferent Aliran aferent GFR diuresis
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Reabsorpsi & sekresi tubulus
Furosemide
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Reabsorpsi & sekresi tubulus
Thiazide
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Reabsorpsi & sekresi tubulus
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MiksiMiksi
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Refleks miksi
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Beser (ngompol) Sfingter urethra eksterna otot rangka
kendalikan BAK Sfingter urethra eksterna tak mampu
berkontraksi tak mampu tahan BAK Penyebab : trauma tulang belakang,
jatuh terduduk Terapi : latihan fisioterapi
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Creatinin & Gagal ginjalCreatinin & Gagal ginjal
Clearance creatinin & kadar creatinin Clearance creatinin & kadar creatinin darah merupakan indikator fungsi darah merupakan indikator fungsi ginjalginjal
Clearance creatinin Clearance creatinin ↓ : fungsi filtrasi ↓ ↓ : fungsi filtrasi ↓ kadar creatinin darah kadar creatinin darah
Kadar creatinin darah Kadar creatinin darah & clearance & clearance creatinin ↓ creatinin ↓ Dx : gagal ginjal Dx : gagal ginjal
Penyebab gagal ginjal : aliran glomerulus↓ Penyebab gagal ginjal : aliran glomerulus↓ misal : batu ginjal & shock misal : batu ginjal & shock