👉 Parvicellularia, also known as paravascular cells or paravascular neurons, are specialized neural cell types that develop from the glial cells of the brain and spinal cord and are involved in the process of signal transmission between different parts of the body. These cells act as "parvocells" because they transmit signals to various areas of the body through a network of synapses, allowing for coordinated movement and function within the body.