🧬 Chapter 3: Reproductive Health — Summery Notes | NCERT + NEET Focus

Rashmi Mishra
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🌸 Chapter 3

 Reproductive Health 

(SUMMARY NOTES )

🧬 Reproductive Health – Quick Revision Notes (Class 12 Biology, NCERT)


🩺 Definition

Reproductive health is a state of physical, emotional, behavioral, and social well-being in all aspects of reproduction — not merely the absence of disease or disorders.


🌸 1. Reproductive Health in India

  • First country to launch Family Planning Programme in 1951.
  • Later expanded into Reproductive and Child Health (RCH) Programme.

Objectives

  • Create awareness about sex and reproduction.
  • Provide medical aid to mothers and children.
  • Control population growth.
  • Prevent STDs and infertility.

📚 2. Importance of Sex Education

  • Informs youth about puberty changes.
  • Promotes safe and responsible sexual behavior.
  • Helps prevent unwanted pregnancies & STDs.
  • Develops respect and understanding between genders.

🦠 3. Sexually Transmitted Diseases (STDs)

Definition

Diseases transmitted mainly through sexual contact with infected persons.

Common STDs

Bacterial

Viral

Other (Protozoa/Fungal)

Gonorrhea

HIV/AIDS

Trichomoniasis

Syphilis

Genital Warts (HPV)

Candidiasis

Chlamydia

Genital Herpes


Symptoms

  • Itching or sores in genital area
  • Discharge or burning during urination
  • Fever and rash in some cases

Prevention

✅ Use condoms
✅ Avoid multiple partners
✅ Maintain hygiene
✅ Seek early treatment
✅ Screen blood before transfusion


👶 4. Birth Control / Contraception

Need

  • To control population
  • Prevent unwanted pregnancies
  • Maintain maternal and child health

Types of Contraceptive Methods

Method

Example

Mechanism / Note

Natural / Traditional

Periodic Abstinence, Withdrawal, Lactational Amenorrhea

Avoid fertilization naturally

Barrier

Condoms, Diaphragms, Spermicides

Block sperm entry; prevent STDs

IUDs (Intrauterine Devices)

CuT, Cu7, LNG-20, Multiload 375

Prevent sperm motility or implantation

Oral Contraceptives

Mala-D, Saheli

Hormonal pills; inhibit ovulation

Surgical (Permanent)

Vasectomy, Tubectomy

Block sperm/egg transport permanently


Important Notes

  • Saheli: Non-steroidal pill; contains centchroman (developed by CDRI, Lucknow).
  • Lactational Amenorrhea: Natural protection up to 6 months post-childbirth.
  • IUDs: Popular reversible method for females.

⚕️ 5. Medical Termination of Pregnancy (MTP)

Definition

Intentional or voluntary termination of pregnancy before 20 weeks.

Need

  • Unwanted pregnancy due to rape or failure of contraception
  • Risk to mother’s health
  • Detection of fetal abnormalities

Law

  • MTP Act (1971) → legalized under strict conditions.
    ⚠️ Misuse: For female feticide → hence monitored strictly.

🧫 6. Amniocentesis

Definition

Technique of withdrawing amniotic fluid to test fetal cells for genetic/chromosomal abnormalities.

Used to Detect

  • Down’s Syndrome
  • Hemophilia
  • Sickle Cell Anemia

⚠️ Misuse → Sex determination, leading to female feticide
🚫 Banned under PCPNDT Act (1994)


🧬 7. Infertility

Definition

Inability of a couple to conceive after one year of regular unprotected intercourse.

Causes

  • Physical or anatomical defects
  • Hormonal imbalance
  • Psychological stress
  • Genetic factors

🧫 8. Assisted Reproductive Technologies (ART)

Technique

Full Form

Description

IVF

In Vitro Fertilization

Fertilization outside the body; zygote transferred to uterus → Test tube baby

ZIFT

Zygote Intra-Fallopian Transfer

Zygote transferred into fallopian tube

GIFT

Gamete Intra-Fallopian Transfer

Ovum and sperm placed into fallopian tube

ICSI

Intra Cytoplasmic Sperm Injection

Sperm injected directly into ovum

AI

Artificial Insemination

Semen introduced into uterus artificially


Advantages

  • Helps infertile couples conceive
  • Overcomes low sperm count or blocked tubes

Ethical Concerns

  • Expensive
  • Misuse for gender selection
  • Emotional issues with “test-tube babies”

⚡ 9. Key NCERT Keywords

Term

Meaning

RCH

Reproductive and Child Health Programme

MTP

Medical Termination of Pregnancy

STD

Sexually Transmitted Disease

ART

Assisted Reproductive Technology

IVF

In Vitro Fertilization

IUD

Intra Uterine Device

PCPNDT

Pre-Conception and Pre-Natal Diagnostic Techniques Act


🧠 10. NEET Quick Facts

  • Saheli pillCentchroman → Non-steroidal, once-a-week pill.
  • Copper-T → Prevents sperm motility and implantation.
  • First test-tube baby: Louise Brown (1978, UK).
  • HIV → Retrovirus → destroys CD4 T-cells.
  • Vasectomy → Cut vas deferens (male).
  • Tubectomy → Cut fallopian tube (female).
  • Lactational amenorrhea effective up to 6 months after childbirth.

📊 11. Important Diagrams (For Board Exams)

1.   Contraceptive methods (flowchart/table)

2.   Copper-T / IUD structure

3.   Steps of IVF (Test Tube Baby)

4.   Chart showing ART techniques


🧩 12. Common Board / NEET Questions

Type

Example Question

Answer Hint

1 Mark

Define reproductive health.

Physical, emotional, social well-being related to reproduction.

2 Marks

What is amniocentesis? Why is it banned in India?

Prenatal test for genetic defects; banned due to sex determination misuse.

3 Marks

Name and explain any three contraceptive methods.

Natural, barrier, surgical, etc.

4 Marks

What are ART techniques? Explain IVF and ZIFT.

Assisted methods for infertility treatment.

5 Marks

Explain need, types, and examples of contraceptive methods.

Full explanation with table and examples.


🧾 13. Flowchart Summary

REPRODUCTIVE HEALTH

├── Awareness & Education (RCH, Sex Education)

├── Control of STDs

├── Family Planning / Contraception

     ├── Natural

     ├── Barrier

     ├── IUD

     ├── Oral

     └── Surgical

├── MTP (Legal Abortion)

├── Amniocentesis (Prenatal Diagnosis)

└── Infertility & ART (IVF, ZIFT, GIFT, ICSI, AI)


🎯 Final Tips for Scoring 95%+

✅ Memorize definitions & NCERT examples.
✅ Draw and label diagrams neatly.
✅ Use flowcharts and tables in long answers.
✅ Revise laws & acts (MTP Act 1971, PCPNDT Act 1994).
✅ Practice previous year CBSE + NEET questions.

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