Identify the bones in which the connecting joints are immovable

Options

A. Phalanges
B. Wrist
C. Arm
D. Skull bones

Answer

To identify the bones in which the connecting joints are immovable, we can analyze the options provided:

1. **Phalanges**: The phalanges are the bones in the fingers and toes. They are connected by hinge joints, which allow for movement. Therefore, this option is incorrect.

2. **Wrist**: The wrist consists of several small bones that are connected by ellipsoidal joints. These joints allow for a range of motion, including flexion, extension, and rotation. Thus, this option is also incorrect.

3. **Arm Joints**: The joints of the arm, such as the elbow, are hinge joints that allow for movement. Therefore, this option is incorrect as well.

4. **Skull Bones**: The bones of the skull are connected by fibrous joints, which are immovable. These joints do not allow for any movement, making this option the correct answer.

**Final Answer**: The correct answer is **Skull Bones**, as they have immovable fibrous joints.

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