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asadxyz
05-17-2003, 12:20 AM
Which bone is of ectodermal origin?????


Hint:-
Beware of the catch!!
Jeffk13057
05-17-2003, 06:53 AM
Can even a PA/applicant answer this??


Jeff K
taozi
05-17-2003, 07:00 AM
Which bone is of ectodermal origin?????


Hint:-
Beware of the catch!!

Bones are derived from mesoderm... but odontoblasts are ectodermal in origin so I would say the answer is teeth!

tz
asadxyz
05-17-2003, 09:55 AM
BravO!!!
Same is with Neurocraneum and viscerocraneal bones with the exception of t he base of occipital bones all are derived from neural crest cells which are of ectodermal origin
Well done
Keep it up