KERALA PSC / CDPO / BIOLOGY / HUMAN REPRODUCTIVE SYSTEM / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

 

KERALA PSC / CDPO / BIOLOGY / HUMAN REPRODUCTIVE SYSTEM / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

KERALA PSC / CDPO / BIOLOGY / HUMAN REPRODUCTIVE SYSTEM / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

·      In the human reproductive process, two kinds of sex cells, or gametes, are involved. The male gamete, or sperm, and the female gamete, the egg or ovum, meet in the female’s reproductive system to create a new individual. Both the male and female reproductive systems are essential for reproduction.

·      The organs which performs important functions in reproduction but neither produce gametes nor secrete sex hormones are called secondary sex organs

·      Secondary sex organs include the prostate, seminal vesicles, vas deferens and penis, in males. In females, secondary sex organs include fallopian tubes, uterus, vagina and mammary glands.

·      Extra-abdominal testes are the testes of human males.

·      Testes is the male reproductive organ. The sperms are produced by spermatogonia

·      The male sex hormone, testo-sterone, is produced by Leydig cells.

·      The copulatory organ in male is the Penis.

·      Female reproductive system consists of a pair of ovaries, a pair of oviducts, the uterus, the vagina, accessory genital glands and the mammary glands.

·      Graffian follicle produce a hormone estrogen

·      The external genital organs of females are collectively called vulva. Clitoris is the vestigial penis in female

·      Important sexual hormones of females include estrogen and progesterone.

·      An important sexual hormone of males is androgen, and particularly testosterone.

·      When the male ejaculates during intercourse, semen is deposited into the female’s vagina. From the vagina the sperm make their way up through the cervix and move through the uterus with help from uterine contractions. If a mature egg is in one of the female’s fallopian tubes, a single sperm may penetrate it, and fertilization, or conception, occurs.

KERALA PSC / CDPO / BIOLOGY / HUMAN REPRODUCTIVE SYSTEM / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY