How many bones are in the human skull?
Quick Answer
The adult human skull has 22 bones: 8 cranial bones and 14 facial bones. The tiny ear bones are counted separately from the skull itself in many anatomy texts.
The Full Story
The adult human skull is usually described as having 22 bones, made up of 8 cranial bones that protect the brain and 14 facial bones that shape the face. These bones are joined by sutures, which are immovable fibrous joints in adults. The three smallest bones in the body—the malleus, incus, and stapes—sit in each middle ear and are often discussed separately from the skull count. In infants, some skull bones are not yet fused, which is why the skull can expand as the brain grows. The skull also contains air-filled spaces called sinuses, which help reduce weight and affect the resonance of the voice.
Key Facts
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Suggested video title for this topic:
"Your skull isn’t one solid shell—here’s how 22 bones fit together."
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