Thanks, Cassandra!
Hashi: In JSL, each kana has their own signs, just like the alphabets in ASL. Also, the JSL signs differ from ASL because of cultural differences and different origins (most of ASL signs come from France while JSL was mostly made up at home and school until it became standardized by the Japanese Federation of the Deaf). This is why ASL and French Sign Language looks very similar but very different from British Sign Language.