CREATE TABLE table_41594 ("Animal" TEXT, "Cell type" TEXT, "Resting potential  ( mV ) " TEXT, "AP increase  ( mV ) " TEXT, "AP duration  ( ms ) " TEXT, "Conduction speed  ( m/s ) " TEXT)

Which cell type has a conduction speed of 35?
SELECT "Cell type" FROM table_41594 WHERE "Conduction speed (m/s)" = '35'
SELECT "Cell type" FROM "table_41594" WHERE "Conduction speed (m/s)" = '35'