hippocampal formation ribonucleic acid amount CA1 field of hippocampus ribonucleic acid amount 2026-04-22T14:03:17Z CA1 field of hippocampus RNA amount CMO:0004039 The proportion, quantity, or volume of ribonucleic acid in the part of the hippocampus proper bounded by CA2 and the subiculum, characterized by pyramidal neurons that receive projections from pyramidal neurons of CA3 via the Schaffer collaterals. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds. Trait.ontology VT:0011300