Get Answers to all your Questions

header-bg qa

The storage of food in the cockroach occurs in

 

Option: 1

Oesophagus


Option: 2

Crop


Option: 3

Gizzard


Option: 4

Stomach

 


Answers (1)

best_answer

The digestive system of a Cockroach

  • The digestive system consists of the alimentary canal which is divided into three regions i.e. foregut, midgut and hindgut.

Foregut

  • Foregut includes a buccal chamber with a mouth on one side and a pharynx on the another.
  • It also includes the oesophagus, crop and gizzard. 
  • The mouth opens into a short pharynx, leading to a narrow tubular passage called the oesophagus.
  • Oesophagus opens into a sac-like structure called a crop.
  • The crop is the largest part of the foregut and its function is to store food.
  • The crop is followed by gizzard or proventriculus. It is small, cone-shaped and muscular.
  • Gizzards possess thick inner cuticles in the form of six highly chitinous plates called teeth.
  • The major function of gizzards is to grind the food particles.
  • The entire foregut is lined by cuticles.
  • The junction of the foregut and midgut consists of a ring of 6-8 blind tubules called hepatic or gastric caeca. 
  • The function of hepatic caeca is the secretion of digestive juices.

Salivary glands

  • These are the chief digestive glands of cockroaches
  • They have paired structures that lie on each side of the oesophagus and crop.
  • These secrete saliva which contains mucus, amylase, chitinase and cellulase
     

-Crop is the largest part of the foregut and its function is to store the food.

Posted by

Deependra Verma

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks