Final answer:
Atelencephalia refers to the incomplete development of the brain, and it is rooted in the disruption of embryonic development processes involving the neural tube.
Step-by-step explanation:
Atelencephalia is a condition characterized by the incomplete development of the brain. The term is derived from two Greek words: "atelēs" meaning incomplete and "enkephalos" signifying brain, hence it directly refers to a deficiency in brain formation.
Considering the close relationship between the embryonic development of the various components of the central nervous system (CNS) and the neural tube, disorders related to the nervous system often link back to the early formation of the neural tube itself. During the embryonic stage, early nervous system development begins with the formation of the neural tube. The anterior end of the developing nervous system eventually becomes the brain, whereas the posterior portion develops into the spinal cord. Neural crest cells are associated with the embryologic development of the peripheral nervous system. In the context of disorders like atelencephalia, it is the embryonic development process that is disrupted, leading to neurological deficiencies.