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4.2 PERANAN
HORMON
DALAM KITAR
HAID
Haid ialah keluluhan lapisan dalam dinding
uterus (endometrium) yang disertai dengan
pendarahan.
Seorang perempuan mengalami haid yang
berterusan sehingga putus haid(monopous)
ketika umur 50-an.
Pendarahan berlaku sekali setiap 28 hari
setahun yang dikenali kitar haid atau kitar
estrus.
tanda permulaan kitar haid :
1. pendarahan akibat keluluhan lapisan
endometrium dalam salur darah.
2. Pembinaan semula dinding uterus sehingga
lembut dan tebal (kaya dengan bekalan salur
darah ).
tanda permulaan kitar haid :
1. pendarahan akibat keluluhan lapisan
endometrium dalam salur darah.
2. Pembinaan semula dinding uterus sehingga
lembut dan tebal (kaya dengan bekalan salur
darah ).
3. Pengovulan (pembebasan oosit sekunder
4. daripada kedatangan haid majoriti perempuan
Tempoh ovari).
ialah 5-7 hari.
5. Kitar haid penting untuk endometrium dapat
diperbaharui dan ditebalkan setiap 28 hari.
6. RUJUK JADUAL 4.1 M/S 190
PERANAN HORMON DALAM
MENGAWAL ATUR KITAR HAID
Hormon yang terlibat dalam kitar haid
dirembes oleh kelenjar pituitari ovari.
Hormon yang dirembeskan :
a) Hormon perangsang folikel (FSH)
b) Hormon peluteinan(LH)-mengawal perubahan didalam
ovari.
c) Estrogen dan progesteron-mengawal perubahan
dalam uterus.
Rujuk rajah 4.10 m/s 191
&
rujuk rajah 4.11 m/s 192
• Aras hormon dikawalatur oleh
mekanisme gerak balas negatif.
• Contohnya,FSH merangsang
perembesan estrogen menyebabkan
aras estrogen
menaik.sebaliknya,estrogen merncat
perembesan FSH menyebabkan aras
FSH ini.
SINDROM PRAHAID
• Sindrom prahaid bermaksud tanda-tanda yang
dialami oleh seorang wanita sebelum bermulanya
haid.
Kategori

gejala-gejala

fizikal

Sakit pinggang,pening kepala,pitam,sakit kepala,sakit
sendi,rasa loya,tidak selera untuk makan,kurang
tenaga,tidur tak lena,kesakitan pada payu dara

emosi

Cepat marah,tidak tenteram,gelisah,muram

mental

Kurang daya ingatan,sukar memberi tumpuan,

• P.s : keadaan ini berlaku secara semula jadi..
Putus haid
Putus haid ialah tempoh masa terhentinya pengovulan
dan haid secara semula jadi pada wanita dan lazimnya
berlaku dalam lingkungan
46-50 tahun..
Apbila seorang wanita menghampiri 50
tahun,perembesan hormon estrogen dan pegesterona
akan semakin berkurangan..
Putus haid bener-benar berlaku apabila seorang wanita
tidak datang haid 12 bulan berturut-turut..
Pengurangan estrogen menyebabkan
kecenderungankehilangan unsur kalsium daripada
tulang..
Hal ini menyebabkan tulang rapuh atau retak
(osteoporosis)
Wohaa !!!!! Dah
tamat
noor daya
e-chah basry
eyzaa ndek
g-ra

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Biology

  • 2. Haid ialah keluluhan lapisan dalam dinding uterus (endometrium) yang disertai dengan pendarahan. Seorang perempuan mengalami haid yang berterusan sehingga putus haid(monopous) ketika umur 50-an. Pendarahan berlaku sekali setiap 28 hari setahun yang dikenali kitar haid atau kitar estrus. tanda permulaan kitar haid : 1. pendarahan akibat keluluhan lapisan endometrium dalam salur darah. 2. Pembinaan semula dinding uterus sehingga lembut dan tebal (kaya dengan bekalan salur darah ).
  • 3. tanda permulaan kitar haid : 1. pendarahan akibat keluluhan lapisan endometrium dalam salur darah. 2. Pembinaan semula dinding uterus sehingga lembut dan tebal (kaya dengan bekalan salur darah ). 3. Pengovulan (pembebasan oosit sekunder 4. daripada kedatangan haid majoriti perempuan Tempoh ovari). ialah 5-7 hari. 5. Kitar haid penting untuk endometrium dapat diperbaharui dan ditebalkan setiap 28 hari. 6. RUJUK JADUAL 4.1 M/S 190
  • 4. PERANAN HORMON DALAM MENGAWAL ATUR KITAR HAID Hormon yang terlibat dalam kitar haid dirembes oleh kelenjar pituitari ovari. Hormon yang dirembeskan : a) Hormon perangsang folikel (FSH) b) Hormon peluteinan(LH)-mengawal perubahan didalam ovari. c) Estrogen dan progesteron-mengawal perubahan dalam uterus.
  • 5. Rujuk rajah 4.10 m/s 191 & rujuk rajah 4.11 m/s 192
  • 6. • Aras hormon dikawalatur oleh mekanisme gerak balas negatif. • Contohnya,FSH merangsang perembesan estrogen menyebabkan aras estrogen menaik.sebaliknya,estrogen merncat perembesan FSH menyebabkan aras FSH ini.
  • 7. SINDROM PRAHAID • Sindrom prahaid bermaksud tanda-tanda yang dialami oleh seorang wanita sebelum bermulanya haid. Kategori gejala-gejala fizikal Sakit pinggang,pening kepala,pitam,sakit kepala,sakit sendi,rasa loya,tidak selera untuk makan,kurang tenaga,tidur tak lena,kesakitan pada payu dara emosi Cepat marah,tidak tenteram,gelisah,muram mental Kurang daya ingatan,sukar memberi tumpuan, • P.s : keadaan ini berlaku secara semula jadi..
  • 8. Putus haid Putus haid ialah tempoh masa terhentinya pengovulan dan haid secara semula jadi pada wanita dan lazimnya berlaku dalam lingkungan 46-50 tahun.. Apbila seorang wanita menghampiri 50 tahun,perembesan hormon estrogen dan pegesterona akan semakin berkurangan.. Putus haid bener-benar berlaku apabila seorang wanita tidak datang haid 12 bulan berturut-turut.. Pengurangan estrogen menyebabkan kecenderungankehilangan unsur kalsium daripada tulang.. Hal ini menyebabkan tulang rapuh atau retak (osteoporosis)
  • 9. Wohaa !!!!! Dah tamat noor daya e-chah basry eyzaa ndek g-ra