HB-002 · Skeletal · Part
Skull
Also called: skull, head bones Cranium et viscerocranium
3D anatomy data Classes 6-8 · Classes 9-10 · Classes 11-12 Beginner Draft - educator review
3D is not available on this device, so a picture of the model is shown instead.
Parts: cranium; mandible; maxilla; zygomatic bones; nasal bones; orbit
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About
The skull is made of 22 bones: 8 cranial bones enclose the brain and 14 facial bones shape the face.
- 📍 Where it is
- Top of the vertebral column, forming the head.
- 🧱 Structure
- Flat cranial bones joined by sutures, facial bones around the eyes, nose and mouth, and the movable mandible (lower jaw).
- ⚙️ What it does
- Protects the brain and sense organs, gives shape to the face and holds the teeth for chewing.
💡 Key facts
- The mandible is the only skull bone that moves freely.
- Sutures are joints that allow almost no movement in adults.
- The hyoid bone in the neck does not touch any other bone.
✗ The skull is a single bone
✓ It is many bones joined by sutures; in babies soft spots (fontanelles) are still open.
📒 Words to know
- suture
- fixed fibrous joint between skull bones
- mandible
- lower jaw bone
- maxilla
- upper jaw bone
🏫 Related lessons
- Human body, senses and hygiene Classes 1-5
- Fundamental movement skills Classes 1-5
- Balance, coordination and posture Classes 1-5
- Anatomy, physiology and biomechanics Classes 11-12
Generic GayaGnan topic lessons. Check your own board's syllabus for the exact chapter.
🔎 Sources and credits
Catalog description: Cranial and facial bones shown as an assembled model.
- OpenStax Anatomy and Physiology 2e, ch. 6-9 (bones, skeleton, joints) (accessed 2026-10-30)
- 3D models: BodyParts3D (DBCLS) and the Human Reference Atlas (HuBMAP), CC BY 4.0, with GayaGnan schematics. 3D model credits
For learning only. This site does not give medical advice, diagnosis or treatment, and it does not collect any health data.