A fontanel may be soft and depressed as a result of dehydration. Also spelled fontanelle, fonticulus. Fontanels. fontanel Fontanelle, soft spot Anatomy A membrane-covered region on the skull of a fetus/infant, which corresponds to the convergence of suture lines, where ossification has not yet occurred fontanel
(February 2012) (Learn how and when to remove this template message) Tibial dyschondroplasia (TD) is a metabolic disease of young poultry that affects the growth of bone and cartilage. Often occurs in broilers (chickens raised for meat) and other poultry which have been bred for fast growth rates.
In most cases, this common type of short-limbed dwarfism is related to a genetic mutation in the fibroblast growth factor receptor 3 gene. There are two possible causes of achondroplasia. One possible cause is a genetic mutation in the fibroblast growth factor receptor 3 (FGFR3) gene located on chromosome 4.The other possible cause is that the condition can be inherited from a parent with achondroplasia.chondroplasia can also be inherited in an autosomal dominant pattern, which means that one copy of the altered gene in each cell is sufficient to cause the disorder. In these cases, one of the parents with achondroplasia passes on the FGFR3 gene to the child.