Question

what is the role of Gizzard in the alimentary canal of a cockroach?

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Answer 1

Answer:

Role of Gizzard in alimentary canal of cockroach is grinding of food into small particles to digest easily.

Explanation:

Gizzard also present in Birds.

Answer 2

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GIZZARD:-

A thickened part of the digestive tract in some animals (such as an insect or an earthworm) that is similar in function to the crop of a bird is called a Gizzard.

SITUATED :-

At its porterior extremity the crop narrow down and opens into a small, conical and thick walled sac, the gizzard which is broad anteriorly and narrow posteriorly.

ASSOCIATED PARTS:-

The anterior part of gizzard (also called armarium) has six longitudinal folds bearing six chitinous teeth and in the posterior part, six cushion like pads (also called pulville) with chitinous hair are present.

ROLE OF GIZZARD IN THE ALIMENTARY CANAL OF COCKROACH:-

When the muscular wall of gizzards contracts the teeth work against each other and grind the food , while the hairs act as sieve or strainer stomodael valve present also in the posterior partnership the of gizzard prevents regurgination of food.

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