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Alary muscles are present in ______ and they help in _______
 

Option: 1

Cockroach; excretion


Option: 2

Earthworm; circulation of blood


Option: 3

Frog; respiration


Option: 4

Cockroach; circulation of blood

 


Answers (1)

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Circulatory System of Cockroach

  • The circulatory system of cockroach is open type with blood flowing in open spaces. 
  • Blood flows freely in the body cavity which is known as haemocoel. 
  • Blood vessels are poorly developed 
  • The haemocoel is divided into sinuses or blood spaces. 
  • Visceral organs located in the haemocoel are bathed in blood (hemolymph) which is composed of colourless plasma and haemocytes.

 

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The pumping of blood is brought about by the contraction and relaxation of fan-shaped paired muscles called alary muscles.

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shivangi.bhatnagar

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