In which of the following joints will restricted movement be observed ?

Options

A. Joint present between flat skull bones
B. Joint present between adjacent vertebrae
C. Joint present between humans and pectoral girdle.
D. Knee joint

Answer

To determine which joint exhibits restricted movement, we need to analyze the options provided in the question.

### Step-by-Step Solution:

1. **Understand the Types of Joints**:
- Joints can be classified based on their movement capabilities:
- **Immovable Joints**: These joints do not allow any movement (e.g., sutures in the skull).
- **Slightly Movable Joints**: These joints allow limited movement (e.g., joints between vertebrae).
- **Freely Movable Joints**: These joints allow a wide range of movement (e.g., shoulder, knee).

2. **Evaluate Each Option**:
- **Option 1: Joint present between the flat skull bones**:
- These are called sutures, which are fibrous joints and are immovable. Therefore, they do not exhibit restricted movement; they simply do not move at all.

- **Option 2: Joint present between adjacent vertebrae**:
- The joints between adjacent vertebrae are called intervertebral joints. These are slightly movable joints that allow limited movement (flexion, extension, and slight rotation). Hence, they exhibit restricted movement.

- **Option 3: Joint present between the humerus and the pectoral girdle**:
- This is a ball-and-socket joint (shoulder joint), which allows a wide range of movement. Therefore, it does not exhibit restricted movement.

- **Option 4: Knee joint**:
- The knee joint is a hinge joint that allows movement primarily in one plane (flexion and extension). While it has some limitations, it is not classified as having restricted movement compared to the intervertebral joints.

3. **Conclusion**:
- Based on the analysis, the joint that exhibits restricted movement is the joint present between adjacent vertebrae (Option 2).

### Final Answer:
The joint that will exhibit restricted movement is the **joint present between adjacent vertebrae** (Option 2).