Chondrocranium
Chondrocranium
Chondrocranium (pronunciation: kon-dro-kra-ne-um) is a part of the skull that is primarily composed of cartilage. It forms the base of the skull and supports the brain in vertebrates.
Etymology
The term "Chondrocranium" is derived from the Greek words 'chondros' meaning cartilage and 'kranion' meaning skull.
Structure
The Chondrocranium is made up of several parts, including the occipital, sphenoid, ethmoid, and temporal bones. These bones are initially formed from cartilage, which later ossifies to form bone. The Chondrocranium supports the brain and sensory organs and provides attachment points for jaw and neck muscles.
Development
The Chondrocranium develops from neural crest cells and mesoderm during embryonic development. It forms the base of the skull and the back of the skull, and it also forms the nasal and optic capsules.
Related Terms
- Neurocranium: The part of the skull that encloses the brain.
- Viscerocranium: The part of the skull that forms the face and jaw.
- Endochondral ossification: The process by which cartilage is replaced by bone.
See Also
External links
- Medical encyclopedia article on Chondrocranium
- Wikipedia's article - Chondrocranium
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