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Skull bones are...

Skull bones are

A

Replacing bones

B

Investing bones

C

Sesamoid bones

D

Irregular bones.

Text Solution

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The correct Answer is:
**Step-by-Step Text Solution:** 1. **Understanding Skull Bones**: The skull is composed of two main sets of bones: cranial bones and facial bones. 2. **Cranial Bones**: There are 8 cranial bones in the human skull. These bones form the protective case around the brain. 3. **Facial Bones**: In addition to the cranial bones, there are 14 facial bones. These bones form the structure of the face. 4. **Total Number of Skull Bones**: When you add the cranial bones (8) and the facial bones (14), the total number of bones in the skull is 22. 5. **Surgical Context**: A craniotomy is a surgical procedure where a section of the skull is removed to access the brain. The piece that is removed is referred to as a "bone flap." 6. **Replacing the Bone Flap**: After the surgical procedure, the bone flap is usually replaced using tiny plates and screws to secure it back in place. This process involves "replacing bones." 7. **Conclusion**: Therefore, the skull bones consist of 22 bones in total, comprising 8 cranial bones and 14 facial bones. ---
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