Molecular neuroscience is a discipline of neuroscience that studies molecular biology ideas applied to animal nervous systems. The scope of this subject includes molecular neuroanatomy, molecular signaling processes in the nervous system, genetics and epigenetics' impact on neuronal development, and the molecular basis for neuroplasticity and neurodegenerative disorders. Molecular neuroscience, like molecular biology, is a relatively new field that is rapidly evolving.
Cellular neuroscience is a subfield of neuroscience that studies neurons at the cellular level. This comprises single-neuron morphology and physiological features. Cell biology, developmental biology, and neurobiology are all areas of CBN study, with a focus on fundamental difficulties in cell signalling and communication.