The lenticular nucleus, also called lentiform nucleus, is a relatively large body of grey matter within the white matter of the human brain. It is composed of the putamen and the globus pallidus, which are two masses of nerve cell bodies. Anteriorly, it is connected to the caudate nucleus. Damage to the lenticular nucleus causes dystonia, a medical condition in which muscles lose their tone. Function: it assists the cerebellum in motor coordination and execution of accurate movements.