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(c) Epididymis  :  It  is  a  long  coiled  tube.  Its      gesterone are also produced by ovaries.
               function  is  the  temporary  storage  of            (b)  Fallopian  tubes  of  oviduct  :  The  tubes

               sperms.                                                  connecting  ovaries  with  uterus  are

            (d) Sperm duct or vas deferens : A long tube                oviducts.  Fertilization  takes  place  in
               between testes and urinary bladder meant                 fallopian tube.
               for transportation of sperms to the urethra.         (c) Uterus  :  Uterus  is  a  womb  where  the

            (e) Urethra  :  Actually  a  part  of  excretory            development of a baby takes place.
               system  serves  as  a  temporary  storage  of        (d)Cervix  :  Ring  of  muscles  at  lower  end  of

               sperms.                                                  uterus.

            (f) Penis  :  Penis  is  meant  for  discharge  of      (e) Vagina : Vagina is the tube that leads to the

               sperms.                                                  uterus. It is called as the birth canal as baby
                                                                        is  born  through  this  passage,  only  after

                Bladder                             Seminal             completion  of  9-month  term  in  case  of
                                                     vesicle            human beings.
                                                    Prostate        (f) Vulva : Opening of vagina is called vulva.

               Urethra                               gland
                                                     Vas                         Fallopian       Fundus of
                                                   deferens                        tube           uterus
                Penis                            Epididymis
                                                  Testicle

                            Male reproductive system
            Structure of sperm : The structure of sperms                       Uterus               Internal os

            given below.                                                  Myometrium                 Cervix    Ovary
                                                                                                    External os
                                                                           Endometrium
                                                                             Perimetrium            Vagina

                                                                                                    Introitus

                                                                                   Female reproductive system
                                                                    Structure of an egg

                                                                    Egg is spherical, about 1 mm in diameter. It is
                              Structure of sperms
                                                                    enclosed  by  a  membrane  and  consists  of  a
            Sperm consists of a :
                                                                    nucleus. It is of the size of a pin head.
            (i)  Head : Comprises of a nucleus.                                   Pellucic
                                                                                 membrane  Corona radiata
            (ii) Middle piece : Possesses mitochondria.

            (iii)  Tail  :  Provides  motility  to  the  sperm  or
            helps the sperm to move in oviduct.                                                      Cell membrane
                                                                                                     Nucleus
            2.  Female  reproductive  system  :  Female                                              Cytoplasm

            reproductive system comprises of :

            (a) Pair of ovaries : Ovaries produce ovum or
                                                                                    Vitelline membrane
               egg  cells  or  female  gamete.  Female  sex
                                                                                      Structure of an egg
               hormones  called  estrogen  and  pro-
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