- A drumstick consists of a small nuclear mass, about 1.5µ in diameter, which is attached to the body of the nucleus by means of a thin filament. Drumsticks may occur in any of the three types of polymorphonuclear leucocytes, but for practical purposes only those present in neutrophils are considered. It is now generally accepted that the drumstick is an expression of an X-chromosome in cells in which more than one are present.