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.
For poems thematically focused on death, see Category:Poems about death. The jisei, or death poem, of Kuroki Hiroshi, a Japanese sailor who died in a Kaiten suicide torpedo accident on 7 September 1944. It reads: This brave man, so filled with love for his country that he finds it difficult to die, is calling out to his friends and about to die.