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प्रश्न
Describe in brief the role of testis in human male reproductive system.
उत्तर
Testis: The testes are the male reproductive organs that are located outside the abdominal cavity within a pouch called scrotum. It produces sperms and also produce a hormone called testosterone, which brings about secondary sexual characters in boys.
संबंधित प्रश्न
Describe, in brief, the changes the uterus undergoes
(i) to receive the zygote.
(ii) if zygote is not formed
When a cell reproduces, what happens to its DNA?
Write the names of male sex hormone?
Which one of the following best describes the function of the umbilical cord? It :
(a) feeds the embryo with digested substances.
(b) conveys nutrients and wastes to and from the embryo respectively
(c) removes waste matter from the embryo to the mother's blood.
(d) supplies oxygenated blood from the mother to the embryo.
During adolescence, several changes occur in the human body. Mark one change from the following associated with sexual maturation in boys.
Write two examples of sexually transmitted diseases caused by bacteri.
Diagram shows the reproductive system of female human beings:
(i) Name the parts numbered 1 to 14.
(ii) Normally, after how many days does an ovary release an egg?
(iii) Where are the sperms released during coitus?
(iv) What is the role of sperms after their ejaculation in vagina?
(v) What is the function of the organ numbered 5?
(vi) What is the gestation period in human?
Define the following:
Sexual reproduction
Answer the following question:
Why are family planning measures needed in our country?
Which one of the following statements about human sperm is correct?
