Grey matter refers to unmyelinated neurons and other cells of the central nervous system. It is present in the brain, brainstem and cerebellum, and present throughout the spinal cord.rey matter refers to unmyelinated neurons and other cells of the central nervous system. It is present in the brain, brainstem and cerebellum, and present throughout the spinal cord.
Kaz Tada (left) was one of those rounded up. Kaz was a Nisei  a person born in America of parents who immigrated from Japan. Nisei is a Japanese word meaning second generation. Isei refers to first generation immigrants, those who came the U.S. from Japan. And Sensei refers to third generation Japanese Americans.
From Wikipedia, the free encyclopedia. The NiÊ»ihau incident (or Battle of NiÊ»ihau) occurred on December 7, 1941, when Imperial Japanese Navy Air Service pilot Shigenori Nishikaichi (è¥¿éå° éå¾³ Nishikaichi Shigenori) crash-landed his Zero on the Hawaiian island of NiÊ»ihau after participating in the attack on Pearl Harbor.