title: Comparison between the dimensions of dendritic spines in the cerebral cortex of newborn and adult guinea pigs.
abstract: Dendritic spines in the cerebral cortex of newborn and adult guinea pigs were compared quantitatively. An increase in the average diameter of the head by 21% and in the diameter of the stalk by 29% was found. No difference could be measured in the average length of the spines of both age groups. When plotting the individual measurements against each other, a slight correlation could be found only between the size of the spine head and the thickness of the stalk.
mesh_terms: D000367:Age Factors; D000818:Animals; D000831:Animals, Newborn; D003712:Dendrites / Q000648:ultrastructure*; D006168:Guinea Pigs; D009044:Motor Cortex / Q000254:growth & development / Q000648:ultrastructure*; D009473:Neuronal Plasticity; D013003:Somatosensory Cortex / Q000254:growth & development / Q000648:ultrastructure*