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Menstrual Cycle (hormones Named)
School outline: roughly a month in many books. FSH: follicle grows. Oestrogen: lining thickens. LH peak: ovulation named (egg released). Progesterone from corpus luteum: lining stays. If no pregnancy, progesterone falls, lining sheds (menstruation). If pregnancy, hCG named as a keep-corpus signal in some books. No calendar-as-contraception advice, no doses, no brand names. The menstrual cycle is c
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Menstrual Cycle (hormones Named)
What is it?
School outline: roughly a month in many books. FSH: follicle grows. Oestrogen: lining thickens. LH peak: ovulation named (egg released). Progesterone from corpus luteum: lining stays. If no pregnancy, progesterone falls, lining sheds (menstruation). If pregnancy, hCG named as a keep-corpus signal in some books. No calendar-as-contraception advice, no doses, no brand names. The menstrual cycle is controlled by a precise hormone sequence: FSH, oestrogen, LH peak (ovulation), then progesterone. It is an exam diagram topic, not contraception advice.
In simple words
- School outline: roughly a month in many books.
- 1. FIRST HALF: Follicular phase named.
- 2. SECOND HALF: Luteal phase named.
- Exam reminder: Match: LH peak -> ovulation (school). Progesterone -> lining maintained. Fall of progesterone -> menstruation if no pregnancy.
Important terms
MENSTRUAL CYCLE (HORMONES NAMED): School outline: roughly a month in many books.
1. FIRST HALF: Follicular phase named.
2. SECOND HALF: Luteal phase named.
What you should learn
- Explain menstrual cycle (hormones named) in clear biological language.
- Distinguish 1. first half from 2. second half.
- Use the key terms to answer a short Federal Board exam question.
Examples
- Day numbers vary
- Do not use this as a planner
- LH surge -> ovulation
FIRST HALF
Follicular phase named. Period days are the shed. Then rebuild. Oestrogen rises. One follicle usually dominates (school). Menstruation (days 1–5): lining sheds. Follicular phase: FSH grows follicle, oestrogen rebuilds lining. One follicle becomes dominant; oestrogen peaks.
SECOND HALF
Luteal phase named. Progesterone high. Temperature tale if the book has it. No pregnancy: corpus luteum fades, shed again. Pregnancy: lining kept. Ovulation (~day 14): LH surge releases egg. Luteal phase: corpus luteum secretes progesterone. If no pregnancy, progesterone falls and cycle repeats.
Recommended for Class 11
Full school-level explanation
School outline: roughly a month in many books. FSH: follicle grows. Oestrogen: lining thickens. LH peak: ovulation named (egg released). Progesterone from corpus luteum: lining stays. If no pregnancy, progesterone falls, lining sheds (menstruation). If pregnancy, hCG named as a keep-corpus signal in some books. No calendar-as-contraception advice, no doses, no brand names. The menstrual cycle is controlled by a precise hormone sequence: FSH, oestrogen, LH peak (ovulation), then progesterone. It is an exam diagram topic, not contraception advice.
Four hormone words on a timeline:
WHAT — MENSTRUAL CYCLE (HORMONES NAMED)
School outline: roughly a month in many books. FSH: follicle grows. Oestrogen: lining thickens. LH peak: ovulation named (egg released). Progesterone from corpus luteum: lining stays. If no pregnancy, progesterone falls, lining sheds (menstruation). If pregnancy, hCG named as a keep-corpus signal in some books. No calendar-as-contraception advice, no doses, no brand names. The menstrual cycle is controlled by a precise hormone sequence: FSH, oestrogen, LH peak (ovulation), then progesterone. It is an exam diagram topic, not contraception advice.
WHY — Why this topic matters
MENSTRUAL CYCLE (HORMONES NAMED) is an independent FBISE learning unit because students must connect its structures and processes with their biological functions and examples.
HOW — How it works
FIRST HALF: Follicular phase named. Period days are the shed. Then rebuild. Oestrogen rises. One follicle usually dominates (school). Menstruation (days 1–5): lining sheds. Follicular phase: FSH grows follicle, oestrogen rebuilds lining. One follicle becomes dominant; oestrogen peaks. Examples: Day numbers vary; Do not use this as a planner; LH surge -> ovulation. SECOND HALF: Luteal phase named. Progesterone high. Temperature tale if the book has it. No pregnancy: corpus luteum fades, shed again. Pregnancy: lining kept. Ovulation (~day 14): LH surge releases egg. Luteal phase: corpus luteum secretes progesterone. If no pregnancy, progesterone falls and cycle repeats. Examples: Corpus luteum; hCG named optional; No drug protocol. Match: LH peak -> ovulation (school). Progesterone -> lining maintained. Fall of progesterone -> menstruation if no pregnancy.
FIRST HALF
Follicular phase named. Period days are the shed. Then rebuild. Oestrogen rises. One follicle usually dominates (school). Menstruation (days 1–5): lining sheds. Follicular phase: FSH grows follicle, oestrogen rebuilds lining. One follicle becomes dominant; oestrogen peaks.
Remember
- FSH then oestrogen
Examples
- Day numbers vary
- Do not use this as a planner
- LH surge -> ovulation
SECOND HALF
Luteal phase named. Progesterone high. Temperature tale if the book has it. No pregnancy: corpus luteum fades, shed again. Pregnancy: lining kept. Ovulation (~day 14): LH surge releases egg. Luteal phase: corpus luteum secretes progesterone. If no pregnancy, progesterone falls and cycle repeats.
Remember
- progesterone holds lining
Examples
- Corpus luteum
- hCG named optional
- No drug protocol
Remember
- FSH, oestrogen, LH, progesterone
- ovulation named
- LH, progesterone, shed
- names, no doses
- FSH then oestrogen
- progesterone holds lining
- FSH, oestrogen, LH, progesterone
- ovulation named
How the ideas connect
Match: LH peak -> ovulation (school). Progesterone -> lining maintained. Fall of progesterone -> menstruation if no pregnancy.
Deeper understanding
Go beyond memorising Menstrual Cycle (hormones Named). Connect the definition to reasons, relationships, exceptions, and exam wording.
How the ideas connect
Match: LH peak -> ovulation (school). Progesterone -> lining maintained. Fall of progesterone -> menstruation if no pregnancy.
Common mistakes
Exam focus
Core Idea
1. FIRST HALF
2. SECOND HALF
Exam Example
Exam focus
Quick revision
- FSH, oestrogen, LH, progesterone
- ovulation named
- LH, progesterone, shed
- names, no doses
- MENSTRUAL CYCLE (HORMONES NAMED): School outline: roughly a month in many books.
- 1. FIRST HALF: Follicular phase named.
Hormone names for exams. No doses, no contraception how-to, no cycle-as-method.
For long answers on Menstrual Cycle (hormones Named): define clearly → explain the main parts → give one example → state one exam caution.
Exam Focus
Exam Focus
Important points
- FSH, oestrogen, LH, progesterone
- ovulation named
- LH, progesterone, shed
- names, no doses
Important formulas
- FSH, oestrogen, LH, progesterone
- ovulation named
- LH, progesterone, shed
Common exam traps
- Hormone names for exams. No doses, no contraception how-to, no cycle-as-method.
- Do not treat 1. FIRST HALF and 2. SECOND HALF as the same idea; each explains a different part of the topic.
Long question structure
Definition → key parts → example → exam caution
Common Mistakes
Common Mistakes
- Mistake
Hormone names for exams. No doses, no contraception how-to, no cycle-as-method.
- Mistake
Do not treat 1. FIRST HALF and 2. SECOND HALF as the same idea; each explains a different part of the topic.
- Mistake
Writing only “FSH, oestrogen, LH, progesterone” is incomplete. Link it with “ovulation named” and explain the biological reason or sequence.
- Mistake
Hormone names for exams. No doses, no contraception how-to, no cycle-as-method.
Revision Zone
60-Second Revision
Quick cues from this topic — use them for last-minute revision.
FSH, oestrogen, LH, progesterone
ovulation named
LH, progesterone, shed
names, no doses
School outline: roughly a month in many books. FSH: follicle grows. Oestrogen: lining thickens. LH peak: ovulation named (egg released). Progesterone from corpu
- Definition
- School outline: roughly a month in many books. FSH: follicle grows. Oestrogen: lining thickens. LH peak: ovulation named (egg released). Progesterone from corpu
- Example
- Day numbers vary
- Critical warning
- Hormone names for exams. No doses, no contraception how-to, no cycle-as-method.
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Exam Practice
Define
Q1. Define Menstrual Cycle (hormones Named).
Explain
Q2. Explain: FIRST HALF.
Example
Q3. Give one clear example of Menstrual Cycle (hormones Named) and say why it fits.
Mistake
Q4. State one common mistake students make about Menstrual Cycle (hormones Named).
Exam note
Q5. Write a short exam note on Menstrual Cycle (hormones Named): definition, two points, one example.
Sources & References
School-standard facts for Matric and Intermediate. Original explanations — not copied from textbooks.