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Question
Draw a labelled diagram of the human male reproductive system. With the help of this diagram, describe the working of human male reproductive system?
Solution
Testes are the primary reproductive organs of human males. They are located in the scrotum outside the body. They produce sperms, which engage into a coiled tube called epididymis and get stored there. Sperms are then carried away through the vas deferens, which joins the urethra. On way to the urethra, sperms also receive secretions from the seminal vesicles and the prostrate gland. The urethra carries sperms to the penis, which opens outside the body.
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RELATED QUESTIONS
Name the parts of the human female reproductive system where
i. fertilisation takes place
ii. implantation of the fertilised egg occurs
What is the name of the narrow opening between the uterus and the vagina.
When a fertilised egg E formed in the oviduct of a human female divides repeatedly to form an embryo, the embryo gets implanted in the thick and soft lining of the uterus. After this a disc-like special tissue T develops between the uterus wall and embryo through which all the requirements of the developing embryo (and foetus) are met from the mother's body, The embryo is connected to the tissue T through a string like structure S.
(a) What is the other name of fertilised egg cell E?
(b) What is the name of tissue T?
(c) Name the string-like structure S.
(d) Name two substances which pass from mother's blood to embryo through tissue T and, one type of substance which passes from embryo to mother's blood.
(e) What happens to S when the baby is born? Why?
In humans, the fertilization takes place in:
Draw a sectional view of human female reproductive system and label the following parts :
(i) Where the development of egg occurs.
(ii) Where fertilization takes place.
List two changes observed in girls at the time of puberty.
What is sexual reproduction? What are its essential features?
Choose the Odd One Out:
Gestation period in man
Mention any two changes that are common to both boys and girls in early teenage years.
