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gradient theory -it was given by t boveri amp was supported by mc childchild called it as metabolic axial gradient theoryaccording to it the egg has
regulative theoryit was propounded by hens drieschhe performed experiments on the eggs of sea urchin similar to the experiments performed by rouxhe
mosaic thoery -it was given by w rouxhe studied the development of frogs egg he destroyed one cells by a hot needle out of 2-cells formed as a result
germ plasm theory -it was proposed by weismannaccording to it two types of cells are formed during embryonic development viz - germ cell amp somatic
baers law -it was given by ke von baer von baer was the first scientist who studied the embryology systematicallyaccording to it in the embryonic
theory of epigenesis -it was propounded by c f wolff and supported by von baeraccording to it the egg contains the substances which are required in
historical reviewanoximander 600 bc was the first western philospher who proposed the idea that living creatures arose from the moist
difference between reproduction system of man and rabbit
developmental disorders -1 amnionitis-inflammation of amnion due to infection2 abortion-escape of a embryo
lactation -production of milk in the females breasts after delivery is lactationprolactin is responsible to synthesize milk in breastoxytocin is
parturition -gestation period is of 280 days in rabbit 28 days parturition is the expelling of fully mature young ones from the mothers
gastrulation -morphogenic movements are occured 3 germinal layers are formed ectoderm endoderm amp mesodermendoderm is formed first mesoderm is
blastulation -type of blastula is blastocyst or trophoblastulaouter layer of cell becomes flat and form trophoblast or trophoectoderm which receives
morulation -32 celled embryo is solid looks like little mulberry known as morula it reaches uterus on fourth daystill it is covered by fertilization
cleavage -holoblastic amp unequal first plane is meridional 2 blastomeres are formed 1 megamere amp another micromere2nd plane is also meridional but
copulation -followed with the help of penis sperms are ejaculated deep in vaginapolyestrous ie can capulate any time thorughout the
placenta -a common tissue of foetus amp mother uterus which is physical physiological amp endocrinal connection is known as placentafunction -to
removal of testis -it is male hypogonadism1 before puberty -cestration before puberty results in permanent sterility this condition is eunuchoidism
sex differentiation mechanism -primitive gonads are identical in both sexes upto 6 weeks of gestation pressurethis gonad is known as bipotential
artificial insemination -artificial insemination is a technique to make a female pregnant by artificially introducing semen into the vaginaartificial
menstrual cycle -it occurs only in primates start at the age of 13 yrs upto menopouseduring this period generally one egg is released every 28 dyas
oestrous cycle -also known as heat period common in rabbit cat dog sheepsin this period desire for copulation occur possibility of fertilization is
disorders of female reproductive system - i sterilityii menstrual irregularity - this may be
onset of puberty in female -attains at the age of 13 by estrogen hormoneit includes -1growth of breasts2growth of external genitilia3broading of
external genitalia -vestibule is covered by 2 pairs of lips labia majoris and labia minorisat the anterior junction of labia minoris a small erectile