light and electron microscopy are used in this study to compare chondrogenesis in cultured somites with vertebral chondrogenesis these studies have also characterized some of the effects of inducer tissues ( notochord and spinal cord ) , and different nutrient media , on chondrogenesis in cultured somites somites from stage 17 ( 54-60 h ) chick embryos were cultured , with or without inducer tissues , and were fed nutrient medium containing either horse serum ( hs ) and embryo extract ( ee ) , or fetal calf serum ( fcs ) and f12x amino acid analyses were also utilized to determine the collagen content of vertebral body cartilage in which the fibrils are homogeneously thin ( ca . 150 a ) and unbanded .
C0549207
vertebral
C0223084
vertebral body