Hinge joint is present in our body between

Options

A. thumb and trapezium
B. humerus and scapula
C. humerus and radio-ulna
D. first and second vertebra

Answer

To answer the question regarding where hinge joints are present in the human body, we will analyze the options provided and identify the correct answer step by step.

### Step-by-Step Solution:

1. **Understanding Hinge Joints**:
- Hinge joints are a type of synovial joint that allows movement primarily in one plane, similar to the opening and closing of a door. They are characterized by a synovial cavity filled with synovial fluid and articulating surfaces covered with hyaline cartilage.

2. **Analyzing the Options**:
- **Option 1: Thumb and Trapezium**: This joint is a carpometacarpal joint, which is not a hinge joint but rather a saddle joint.
- **Option 2: Humerus and Scapula**: This joint forms the shoulder joint, which is a ball and socket joint, not a hinge joint.
- **Option 3: Humerus and Radius/Ulna**: This joint forms the elbow joint, which is a classic example of a hinge joint, allowing flexion and extension.
- **Option 4: First and Second Vertebra**: This joint is a pivot joint, allowing rotation, and does not qualify as a hinge joint.

3. **Identifying the Correct Answer**:
- After analyzing all the options, the only option that represents a hinge joint is **Option 3: Humerus and Radius/Ulna**.

### Final Answer:
The hinge joint is present in our body between the **humerus and radius/ulna**.

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