Major constituent of human body is

Options

A. Skeleton
B. Mucles
C. Connective tissue
D. Extracellular fluid.

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Question**: The question asks for the major constituent of the human body among the given options: skeleton, muscles, connective tissue, and extracellular fluid.

2. **Analyzing Each Option**:
- **Skeleton**: The skeleton is a hard structure that protects the inner organs and provides support. It is made up of bones and forms the skeletal system.
- **Muscles**: There are approximately 600 muscles in the human body, which include skeletal, smooth, and cardiac muscles. They are responsible for movement and various bodily functions.
- **Connective Tissue**: This includes various types of tissues such as fibrous tissue, fat, cartilage, bone, bone marrow, and blood. It serves to support, bind, and protect other tissues and organs.
- **Extracellular Fluid**: This refers to all body fluids present outside the cells, making up about 60% of total body weight in healthy adults.

3. **Determining the Major Constituent**: While all these components are essential for the functioning of the human body, the skeleton is considered the major structural constituent. It provides the framework for the body and protects vital organs.

4. **Conclusion**: Based on the analysis, the major constituent of the human body is the **skeleton**.

**Final Answer**: The major constituent of the human body is the skeleton.

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