Question:

Marasmus is caused by the deficiency of

Updated On: Aug 15, 2022
  • protein
  • thiamin
  • riboflavin
  • niacin
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The Correct Option is A

Solution and Explanation

Marasmus is a form of severe protein-energy malnutrition characterised by energy deficiency. It is caused by a severe deficiency of nearly all nutrients, especially protein and calories. The malnutrition associated with marasmus leads to extensive tissue and muscle wasting, as well as variable edema. Other common characteristics include dry skin, loose skin folds hanging over the glutei, axillae, etc. There is also drastic loss of adipose tissue from normal areas of fat deposits like buttocks and thighs. The afflicted are often fretful, irritable, and voraciously hungry.
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Concepts Used:

Digestion and Absorption - Alimentary Canal

Digestion can be defined as the process of breakdown of large, insoluble and complex food molecules into smaller ones for its absorption and circulation in the body. This process involves the usage of a variety of digestive fluids and enzymes, including saliva, mucus, bile and hydrochloric acid, among others.

Read More: Digestion and Absorption

The alimentary canal is mainly referred to as the pathway by which food enters our body and moves out through the anus after digestion. It is a tube-like structure that starts from the mouth and ends in the anus. The alimentary canal plays a primary role in human digestion and is also termed as the digestive tract.

Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract.