Vertebrate anatomy
Nervous tissue is derived from what?
Anatomy
Neurocytoma Fibrous tissue neoplasm Neuroendocrine carcinoma of the cervix Neuroglia List of distinct cell types in the adult human body
Neurocytoma-Abstract Fibrous_tissue_neoplasm-Abstract Neuroendocrine_carcinoma_of_the_cervix-Abstract Neuroglia-Embryonic_development List_of_distinct_cell_types_in_the_adult_human_body-Nervous_system
Neurocytoma (or neuroepithelioma) is a type of nervous system tumor which is primarily derived from nervous tissue. This is in contrast to the gliomas (such as oligodendroglioma), which are derived from glial cells, which are not derived from nervous tissue.  
A fibrous tissue neoplasm is a tumor derived primarily from Fibrous connective tissue. An example is fibroma. 
Neuroendocrine carcinoma of the cervix is best defined separately:Neuroendocrine: Of, relating to, or involving the interaction between the nervous system and the hormones of the endocrine glands. Carcinoma: An invasive malignant tumor derived from epithelial tissue that tends to metastasize to other areas of the body. 
Most glia are derived from ectodermal tissue of the developing embryo, in particular the neural tube and crest. The exception is microglia, which are derived from hemopoietic stem cells. In the adult, microglia are largely a self-renewing population and are distinct from macrophages and monocytes, which infiltrate the injured and diseased CNS. In the central nervous system, glia develop from the ventricular zone of the neural tube. These glia include the oligodendrocytes, ependymal cells, and astrocytes. In the peripheral nervous system, glia derive from the neural crest. These PNS glia include Schwann cells in nerves and satellite glial cells in ganglia. 
Derived primarily from ectoderm. Nervous system. There are nerve cells, also known as neurons, present in our human body. They are branched out. These cells make up nervous tissue. A neuron consists of a cell body with a nucleus and cytoplasm, from which long thin hair-like parts arise. 