英语释义
1. a part of the metathalamus that consists of an oval elevation produced by the underlying lateral geniculate nucleus and is situated on the posterolateral surface of the thalamus — compare medial geniculate body
2. a nucleus of the lateral geniculate body that is the terminus of most nerve fibers of the optic tract and receives nerve impulses from the retinas which are relayed to the visual cortex by way of the optic radiation