Membrane Bone (Noun)
Meaning
Any bone that develops within membranous tissue without previous cartilage formation; e.g. the clavicle and bones of the skull.
Classification
Nouns denoting body parts.
Examples
- The scapula is not considered a membrane bone, as it develops from a cartilaginous model.
- Membrane bones are formed without the intermediate stage of cartilage development seen in endochondral ossification.
- Intramembranous ossification is the process by which membrane bones develop directly from mesenchymal cells.
- The earliest membrane bones in humans form during embryological development, providing initial support and muscle attachment.
- Flat bones such as the sternum, ribs, and certain bones of the skull are classified as membrane bones due to their development from fibrous tissues.