Dermal bone: Difference between revisions

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m
referred to as membrane bone; clearified difference from intramembranous and endochondral ossification. Stated it is formed in the dermis, grows by accretion as well as examples
m (referred to as membrane bone; clearified difference from intramembranous and endochondral ossification. Stated it is formed in the dermis, grows by accretion as well as examples)
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A '''dermal bone''', (membrane bone)- the pattern and form of bones derived from [[intramembranous ossification]], (versus endochondral bone formed by endochondral ossification) define essential components of the [[vertebrate]] skeleton including the skull, jaws, gills, fins and exoskeleton.
 
The function of dermal bone is conserved throughout vertebrates, varying in shape and numbers of bones in the [[skull roof]] and postcranial structures. In [[bony fish]], dermal bone is found throughout the body in the fin rays and scales. However, these traits have been lost in higher vertebrates.
 
Dermal bone is formed within the Dermis; Grows by accretion only; outer portion of the bone depositing more by use of osteocytes
 
(e.g. Clavicle, Patella)
 
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