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  • Integumentary nephridia are V-shaped nephridia attached to the lining of the body wall of segment 3 to the last which open to outside through  Opt

Integumentary nephridia are V-shaped nephridia attached to the lining of the body wall of segment 3 to the last which open to outside through

 

Option: 1

Typhlosole

 


Option: 2

Malpighian tubule

 


Option: 3

Nephridiopore

 


Option: 4

Septal nephridia


Answers (1)

best_answer

 Excretory system of Earthworm

  • The excretory system of earthworm consists of segmentally arranged coiled tubes called nephridia.
  • The major function of nephridia is to regulate the volume and composition of body fluids. 
  • A nephridium starts as a funnel that collects excess fluid from the coelomic chamber.
  • The tubular part of the nephridium delivers the wastes through a pore to the surface of the body wall into the digestive tube.
  • The nephridia are of three types i.e. pharyngeal nephridia, integumentary nephridia and septal nephridia
  • Pharyngeal nephridia
  • It is present as three paired tufts in the 4th, 5th and 6th segments on either side of the pharynx and esophagus.
  • They open into the buccal cavity and pharynx.


Integumentary nephridia 

  • These are V-shaped nephridia attached to the lining of the body wall of segment 3 to the last which open to the outside through nephridiopores 
  • These nephridiopores are minute openings present on the body surface. 

 

- Integumentary nephridia are V-shaped nephridia attached to the lining of the body wall of segment 3 to the last which open to the outside through nephridiopore

 

Posted by

Gautam harsolia

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