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Chapter 16: Problem 36

A part of large intestine which is a blind sac and it harbours some symbiotic micro organism is (a) Colon (b) Caecum (c) Rectum (d) Ileum

Short Answer

Expert verified
The part of the large intestine which is a blind sac and harbours some symbiotic micro organism is the caecum.

Step by step solution

01

Understand the question

The question is asking about a part of the large intestine which is a blind sac and harbors some symbiotic micro organism. A blind sac in anatomical terms means an organ or structure that is open at only one end.
02

Recognize the parts of the large intestine

The large intestine consists of the caecum, colon, and rectum. The term 鈥淚leum鈥� refers to the final section of the small intestine and is not part of the large intestine.
03

Identify the correct option

Among the given options, the part of the large intestine that is described as a blind sac and contains symbiotic microbes is the caecum. Hence option (b) is the correct answer.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Caecum
The caecum is a pouch-like structure at the beginning of the large intestine. Located in the lower right abdomen, it's the first region of the large intestine that receives material from the small intestine.
The caecum's anatomical form is unique because it is shaped like a blind sac, meaning it has an end but opens only on one side into the ascending colon.
This anatomical feature is crucial for its function in the digestive system.
  • It helps in slowing down the passage of material from the small intestine, allowing for more absorption of water and salts.
  • Its environment is ideal for symbiotic microorganisms that play a vital role in digestion.
These features make the caecum an important player in the intricate system of the digestive process.
Symbiotic Microorganisms
Symbiotic microorganisms are tiny, live organisms that live inside the caecum.
They play a crucial role in maintaining gut health and aid in the digestive process. Symbiotic means that both the host (the human) and the microorganisms benefit from this arrangement.
The caecum provides a dark, nutrient-rich environment that these microbes need to thrive.
  • They help in breaking down indigestible food substances, such as fibers.
  • These microorganisms produce important vitamins like Vitamin K and some B vitamins, which are then absorbed by the body.
  • They also play a role in fighting off harmful bacteria, keeping the gut healthy and preventing infections.
The relationship between humans and these microorganisms is vital for keeping our digestive systems running smoothly and efficiently.
Digestive System
The digestive system is a complex arrangement of organs and glands that process food.
It's responsible for breaking down food so that the nutrients can be absorbed and assimilated into the body. The large intestine, including the caecum, colon, and rectum, plays a key role in this process.
  • It absorbs water and salts from the food that hasn't been digested.
  • The processes in the digestive system ensure that waste is formed and eventually excreted from the body.
  • The role of each part, such as how the caecum aids in slowing food movement to facilitate proper assimilation, highlights the system's complexity and efficiency.
Understanding its functions can provide insights into how our bodies make the best use of the food we eat.

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Most popular questions from this chapter

Mucosal layer that forms depressions in between villi in intestine is called (a) Villi (b) Microvilli (c) Crypts (d) Papilla

Intestinal villi are mainly concerned with (a) Assimilation (b) Secretion (c) Ultrafilteration (d) Absorption

The narrow distal end of stomach is called (a) Cardiac (b) Duodenum (c) Pharynx (d) Pylorus

Dental formula of human being is (a) \(I_{2}, C_{2}, P_{1}, M_{3}\) (b) \(I_{2}, C_{1}, P_{2}, M_{3}\) (c) \(I_{3}, C_{1}, P_{2}, M_{2}\) (d) \(I_{2}, C_{2}, P_{3}, M_{1}\)

Which of the following is true about appendix? (a) Narrow finger-like tubular projection (b) Arises from the caecum (c) Vestigial organ (d) All of these
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