cephalopalpebral reflex

ceph·a·lo·pal·pe·bral re·flex

contraction of the orbicularis muscle elicited by tapping the vertex of the skull.

ceph·a·lo·pal·pe·bral re·flex

(sefă-lō-pal-pēbrăl rēfleks)
Contraction of the orbicularis muscle elicited by tapping the vertex of the skull.