the tectospinal projection to the cervical enlargement in both rats and cats arises almost exclusively from the caudolateral quadrant of the contralateral superior colliculus , whereas the tectal projection to the rostral ( upper ) cervical spinal cord originates , in cats , from almost the entire extent of the colliculus and , in rats , from its greater part .
C0228405
superior colliculus
C0039433
tectal