A micrometric and cytophotometric study of the simultaneous development of the cerebellar cortex and dental function in the rat during the early post-natal period. 1984

O Ehrmann, and R Mansour, and G Jacquart

A study was made of the growth of two cerebellar lobules receiving trigeminal afferents, crus 1 (C1) and uvula (U) and another lobule which receives only vestibular afferents, nodulus (N). Growth factors were determined using micrometry and histophotometry. Times of growth end were compared with first masticatory movements. The end of the maturation period of U and the beginning of absorption of tough diet appeared on the 15th post-natal day (PND). The end of growth of C1 on the 18th PND coincided with functional appearance of molars. It was suggested that, in the rat, maturity of the cerebellar cortex in certain lobules could be related to the early stage of weaning.

UI MeSH Term Description Entries
D008297 Male Males
D008409 Mastication The act and process of chewing and grinding food in the mouth. Chewing
D009475 Neurons, Afferent Neurons which conduct NERVE IMPULSES to the CENTRAL NERVOUS SYSTEM. Afferent Neurons,Afferent Neuron,Neuron, Afferent
D011919 Rats, Inbred Strains Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding. August Rats,Inbred Rat Strains,Inbred Strain of Rat,Inbred Strain of Rats,Inbred Strains of Rats,Rat, Inbred Strain,August Rat,Inbred Rat Strain,Inbred Strain Rat,Inbred Strain Rats,Inbred Strains Rat,Inbred Strains Rats,Rat Inbred Strain,Rat Inbred Strains,Rat Strain, Inbred,Rat Strains, Inbred,Rat, August,Rat, Inbred Strains,Rats Inbred Strain,Rats Inbred Strains,Rats, August,Rats, Inbred Strain,Strain Rat, Inbred,Strain Rats, Inbred,Strain, Inbred Rat,Strains, Inbred Rat
D002452 Cell Count The number of CELLS of a specific kind, usually measured per unit volume or area of sample. Cell Density,Cell Number,Cell Counts,Cell Densities,Cell Numbers,Count, Cell,Counts, Cell,Densities, Cell,Density, Cell,Number, Cell,Numbers, Cell
D002525 Cerebellar Cortex The superficial GRAY MATTER of the CEREBELLUM. It consists of two main layers, the stratum moleculare and the stratum granulosum. Cortex Cerebelli,Cerebelli, Cortex,Cerebellus, Cortex,Cortex Cerebellus,Cortex, Cerebellar
D005260 Female Females
D000375 Aging The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time. Senescence,Aging, Biological,Biological Aging
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000831 Animals, Newborn Refers to animals in the period of time just after birth. Animals, Neonatal,Animal, Neonatal,Animal, Newborn,Neonatal Animal,Neonatal Animals,Newborn Animal,Newborn Animals

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