By contrast , the hypoglossal nucleus , which contains α-MNs that innervate the tongue , is found in the medulla , the most caudal ( i.e. , towards the bottom ) of the brainstem structures .
Head entity: medulla Q189033 19
Tail entity: brainstem Q182228 33
Relation (head \u2192 tail): P527
Inverse relation (tail \u2192 head): P361