3-Paratiroid-BARU-b.ppt
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Transcript of 3-Paratiroid-BARU-b.ppt
METABOLISME TULANG
TULANG : - ORGANIK MATRIX : 30%
- GARAM-GARAM : 70%
* ORGANIK MATRIX
95% : KOLAGEN
5% : GROUND SUBSTANCE
- MUKO PROTEIN
(CHONDROITIN SULFAT &
ASAM HIALURON)
* GARAM-GARAM TULANG
T.U. : CALCIUM
PHOSPHAT
HYDROXYAPATITIES :
Ca w-x (H O ) (PO ) (OH )
RATIO Ca/P : 1.3 / 2.0``
PENGATURAN CALCIUM DARAH
9.8 - 10.2 mg %
TURUN (HIPOCALCEMIA)
7MG % : TETANI
4MG % : KEMATIAN
9 - 7 : LATENT TETANI
CHOVSTEK’S SIGN
CARPOPEDAL SPASM
MENINGGI (HIPECALCEMIA)
PROSES CALCIFIKASI : EXTERNA TULANG
17 mg % : KEMATIAN
* PENGATURAN
1. PARAT HORMON (HORMON PARATHYROID)
2. CALCITONIN “C” CELL (CLEAR CELL)
KELENJAR THYROID DIANTARA SEL-SEL
FOLIKEL
3. VIT. D : CALCIFEROL
4. DIHYDROTACHYSTEROL (A T10)
EXCHANGEABLE CALCIUM
CaHPO4
TULANG : 0.4 - 1 %
- SEMUA SEL JARINGAN
- LIVER + G.I TRACT
(PERMEABLE SEL)
METABOLISME CALCIUM & PHOSPHAT
CA :SUMBER : SUSU
ABSORPSI : INTESTINAL
1.000mg Ca MASUK/HARI
100mg ABSORPSI
700mg AKTIF & PASIF
600mg SEKRESI KEMBALI
900mg EKSKRESI PADA FECES
EKSKRESI : FECES
URINE
CHOLECALCIFEROL (VIT. D3)
IN HIBITION
25-HYDROXYCHOLECALCIFEROL
PARATHYROID
HORMON
1,25- HYDROXYCHOLECALCIFEROL
CALCIUM CALCIUM ALKALINE
BINDING STIMUL PHOSPHATASE
PROTEIN ATPase INHIBITION
INTESTINAL ABSORPTION OF CALCIUM
PLASMA CALCIUM ION CONCENTRATION
DEPOSISI
OSTEOBLAST ALKALI PHOSPHATASE
P. ORGANIK P. ANORGANIK
CA P.ANORGANIK
60
(KEADAAN JENUH)
DEPOSISI PERLU VIT.C
YANG CUKUP
RESORPSI
OSTEOCLAST
1. PROTEOLYTIC ENZYM
(LYSOSOME)
MELARUTKAN ORGANIK MATRIX
2. ASAM-ASAM
SITRAT -LAKTAT
MELARUTKAN GARAM2
SP. 30 50
- DARAH : 1. NON DISSFUSABLE
10 mg/% TERIKAT PROTEIN 50%
5 mEg% 2. DIFFUSABLE - NON 10 NESED
CITRAT 5%
3. DISFUSABLE - 10 NESED : 45%
FISIOLOGIS ARTIK
DIPENGARUHI HORMON
P. - TULANG
- INTRA SELULER : ORGANIK
FUNGSI : BAGIAN PLASMA
BAGIAN NUKLEUS
ENZYM
METABOLISME
KARBOHIDRAT
- DARAH :
3-4mg% 1. HPO4 ; H2 PO4
ANORGANIK