Write a short note on coelom(body cavity).
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Answered by
22
Hello friend! I am glad to help you, here is the answer.
Coelom is the space between the body wall and the alimentary canal. The coelom is formed by splitting of the mesoderm during embryonic development.
Depending on the nature of coelom, the animals are subdivided into three categories, viz., acoelomate, pseudocoelomate and coelomate.
ACOELOMATE: When there is no coelom or body cavity in the animal, the animal is called acoelomate. In acoelomate animals the space between the body wall and the alimentary canal is filled with parenchymatous tissue, eg. in animals belonging to phylum Patyhelminthes.
PSEUDOCOELOMATE: Pseudocoel is the false body cavity. This cavity lies between the body wall and the alimentary canal. It is lined by patches if mesodermal cells, eg. animals belonging to Phylum Aschelminthes.
COELOMATE: Coelomates have true body cavity. The mesoderm in coelomates splits into two layers enclosing a coelom. This condition is seen in triploblastic animals. The outer layer lines the body wall whereas the inner layer covers the alimentary canal. The coelom is usually filled with coelomic fluid. But in some animals it is filled with blood. The coelom filled with blood is known as haemocoel.
I hope this will help you. Thank you.
- BRAINLY STAR ROSETA
Coelom is the space between the body wall and the alimentary canal. The coelom is formed by splitting of the mesoderm during embryonic development.
Depending on the nature of coelom, the animals are subdivided into three categories, viz., acoelomate, pseudocoelomate and coelomate.
ACOELOMATE: When there is no coelom or body cavity in the animal, the animal is called acoelomate. In acoelomate animals the space between the body wall and the alimentary canal is filled with parenchymatous tissue, eg. in animals belonging to phylum Patyhelminthes.
PSEUDOCOELOMATE: Pseudocoel is the false body cavity. This cavity lies between the body wall and the alimentary canal. It is lined by patches if mesodermal cells, eg. animals belonging to Phylum Aschelminthes.
COELOMATE: Coelomates have true body cavity. The mesoderm in coelomates splits into two layers enclosing a coelom. This condition is seen in triploblastic animals. The outer layer lines the body wall whereas the inner layer covers the alimentary canal. The coelom is usually filled with coelomic fluid. But in some animals it is filled with blood. The coelom filled with blood is known as haemocoel.
I hope this will help you. Thank you.
- BRAINLY STAR ROSETA
Answered by
6
The coelom exists in multicellular organisms. As a feature of higher-classed organisms, it serves a very important purpose. In this lesson, we'll discuss the formation and use of the coelom in living organisms.
What Is a Coelom?
A coelom is a fluid-filled body cavity that is completely lined by tissue created from the mesoderm, the middle layer of the primary cells found in an embryo. It is typically found in multicellular organisms, which are living things that have more than one cell. The most common types of multicellular organisms are found under the domain eukarya; more simplistic prokaryotic organisms are generally unicellular organisms. Most bilateral animals, those with a left and a right side, have a coelom, as well as vertebrates, or animals with a backbone.
Function
The coelom has numerous functions, the first of which involves acting as a cushion for the internal organs of the organism. Let's look at an example.
If you've ever been in a car accident, you may remember traveling forward and then coming to a sudden stop. However, during the stop, your organs continued to move forward due to inertia. This is because when something is traveling in a certain direction, it has a tendency to continue in that direction until acted upon. During the accident, the coelom, or your body cavity, helped to prevent further damage by cushioning your organs.
What Is a Coelom?
A coelom is a fluid-filled body cavity that is completely lined by tissue created from the mesoderm, the middle layer of the primary cells found in an embryo. It is typically found in multicellular organisms, which are living things that have more than one cell. The most common types of multicellular organisms are found under the domain eukarya; more simplistic prokaryotic organisms are generally unicellular organisms. Most bilateral animals, those with a left and a right side, have a coelom, as well as vertebrates, or animals with a backbone.
Function
The coelom has numerous functions, the first of which involves acting as a cushion for the internal organs of the organism. Let's look at an example.
If you've ever been in a car accident, you may remember traveling forward and then coming to a sudden stop. However, during the stop, your organs continued to move forward due to inertia. This is because when something is traveling in a certain direction, it has a tendency to continue in that direction until acted upon. During the accident, the coelom, or your body cavity, helped to prevent further damage by cushioning your organs.
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