Class 12 Biology — Chapter 2: HUMAN REPRODUCTION

What you'll learn

• ▸The Male Reproductive System
• ▸The Female Reproductive System
• ▸Spermatogenesis
• ▸Hormonal Control of Spermatogenesis
• ▸The Menstrual Cycle
• ▸Fertilisation and Implantation
• ▸Pregnancy and Embryonic Development
• ▸Parturition and Lactation

Chapter Summary

--- PAGE 1 --- CHAPTER 2 12083CH03 HUMAN REPRODUCTION 2.1 The Male Reproductive System 2.2 The Female Reproductive System 2.3 Gametogenesis 2.4 Menstrual Cycle 2.5 Fertilisation and Implantation 2.6 Pregnancy and Embryonic Development 2.7 Parturition and Lactation As you are aware, humans are sexually reproducing and viviparous. The reproductive events in humans include formation of gametes (gametogenesis), i.e., sperms in males and ovum in females, transfer of sperms into the female genital tract (insemination) and fusion of male and female gametes (fertilisation) leading to formation of zygote. This is followed by formation and development of blastocyst and its attachment to the uterine wall (implantation), embryonic development (gestation) and delivery of the baby (parturition). You have learnt that these reproductive events occur after puberty. There are remarkable differences between the reproductive events in the male and in the female, for example, sperm forma…

Practice Questions from this Chapter

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1. Compare sperm and egg cells. Get Solution →
2. Describe the process of fertilization. Get Solution →
3. Explain why testes are outside the body. Get Solution →
4. According to the text, the male reproductive system is located in which region of the body? Get Solution →
5. What is the primary function of the scrotum? Get Solution →
6. Which cells within the seminiferous tubules provide nutrition to the germ cells? Get Solution →
7. The primary female sex organs that produce the female gamete are called what? Get Solution →
8. What is the common name for the uterus, as mentioned in the chapter? Get Solution →

Did you know?

• 💡 Human sperm can survive inside the female body for up to five days.
• 💡 Ancient Egyptians once believed the uterus could wander freely inside a woman's body.
• 💡 A baby's heart can begin beating as early as three weeks after conception.
• 💡 The uterus is one of the strongest and most adaptable muscles in the human body.
• 💡 Female humans are born with every single egg cell they will ever have.

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