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CONTENTS

Tuesday, August 17, 2010

TAENIA SOLIUM LIFE CYCLE

LIFECYCLE OF TAENIA IN HUMAN :
1.Fertilization takes place in ootype
2.After fertilization zygote is formed
3.Zygote ,vitelline cell and vitelline shell are together called capsule
4.Many capsules roll into uterus
5.Rest of the embryonic development takes place in the uterus
6.Zygote is divided into two unequal cells called megamere and embryonic cell
7.Embryoinc cell divides into mesomeres and micromeres
8.Mesomeres develop into inner embryonic membrane
9.Megameres develop into outer embryonic membrane
10.Micromeres form hexacanth
11.Inner embryonic membrane ,outerembryonic membrane and hexacanth are together called hexacanth larva or oncosphere
12.Gravidproglatids containing oncospheres pass out through faeces
13.Oncosphere is the infective stage to pig
LIFECYCLE OF TAENIA IN PIG;
1.When pig consumes the faeces containing gravidproglatids ,oncospheres in gravid proglatids enter into the stomach of pig
2.The outer and inner embryonic membranes are dissolved in the intestine and hexacanth larvae are released
3.Hexacanth larvae are attached to the wall of the intestine
4.Hexacanth larvae penetrate the intestine wall and reach the liver
5.Hexacanth larvae reach the heart from the liver
6.From heart hexacanth reach the skeletal muscles of pig
7.In skeletal muscles hexacanth loses its hooks and develop into cysticercus cellulosae.
8.The pork containing cysticercus cellulosae is called measly pork
9.When man consumes measly pork cysticercus enters into man and develops into an adult
10.The infective stage of taenia to man is cycticercus cellulosa

3 comments:

  1. sir i want request you to keep the vvv important short and very short answers questions in the blog thank you for your sincere work for us

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