Bab 08 Fisiologi Reproduksi
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Transcript of Bab 08 Fisiologi Reproduksi
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FISIOLOGI REPRODUKSI
Dr. dany surya putra
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Fisiologi Reproduksi wanita
Interaksi antara :
1. Hypothalamus2. Pituitary3. Ovary4. Uterus
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HIPOTALAMUS
HIPOFISIS
OVARIUM
ENDOMETRIUM
GNRH (FSHRH / LHRH)
FSH / LH
ESTROGEN PROGESTERON
POROS HHO
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ASPEK HORMONAL• Hipotalamus menghasilkan:
– Releasing hormone/ Releasing factor (GnRH dan PIF) yang berfungsi merangsang hipofisis mengeluarkan gonadotropin dan menghambat prolaktin
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ASPEK HORMONAL• Hipofisis menghasilkan gonadotropin
FSH dan LH. – FSH berfungsi merangsang ovarium untuk
menghasilkan folikel (folikulogenesis)– LH berfungsi memecahkan sel telur yang matang
dan membentuk korpus luteum
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ASPEK HORMONAL• Ovarium menghasilkan:
– Estrogen yang berfungsi merangsang endometrium untuk berproliferasi.
– Progesteron yang berfungsi merangsang endometrium untuk bersekresi.
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Pengaturan Fungsi Testis
• Sekresi Gonadotropin releasing hormone (GnRH) oleh hipotalamus
• Sekresi hormon gonadotropin oleh hipofise anterior :– Luteinizing hormone (LH)– Follicle stimulating hormone (FSH)
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Pengaturan Fungsi Testis
• Pengaturan poros hipotalamus-hipofise-sel Leydig
• Pengaturan poros hipotalamus-hipofise- tubulus seminiferus
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Spermatogenesis (proses pembentukan sel-sel spermatozoa)
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Spermatozoa• Di ejakulasi, hidup 24 – 48 jam pada suhu
tubuh • Suhu rendah, dapat disimpan beberapa
minggu• Suhu di bawah – 100 derajat Celsius, dapat
disimpan bertahun-tahun
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Spermatozoa
• Kepala • Leher • Ekor
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Sperma
• Merupakan campuran antara spermatozoa (dari testis) dengan secret dari kel.kelamin pria (prostat, vesica seminalis dan bulbourethralis)
• Volume : 2 – 6 cc• 20 – 250 juta spermatozoa / cc• pH : 7.0 – 8.0
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TIDAK PERLU SEBESAR INI.LEBIH BAIK KECIL TETAPI RAJIN BANGUN DARIPADA BESAR TETAPI MALAS BANGUN
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FISIOLOGI KEHAMILAN
PEMBUAHAN, NIDASI DAN PLASENTAPEMBUAHAN = KEHAMILAN :1. Sel spermatozoa 2. Sel ovum3. Konsepsi4. Nidasi
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FERTILISASI
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CavuCavum m UteriUteri
IsthmuIsthmuss
Ampulla tuba Ampulla tuba falopiifalopii
FimbriaFimbriaee
OvariuOvariumm
OvulaOvulasisi
OvumOvum
SpermSpermFertilisaFertilisasisi
2 2 SelSel
4 4 SelSel 8 8
SelSel
MorulMorulaa
BlastocystBlastocyst
ImplantasImplantasii
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11 12 16 20 24 28 32 36 38KEHAMILAN ATERM
11 12 16 20 24 28 32 36 38KEHAMILAN ATERM