Tectospinal tract

Tract

Function

Origin

Crossed

Termination

Tectospinal

Reflex postural movements in response to visual, auditory, and somatosensory stimuli

Superior colliculus

Yes; dorsal tegmental decussation (in midbrain)

Ventral horn of cervical segments

Feature

Conveys reflex posture movements in response to visual and possibly auditory stimuli
Fibers from the superior colliculi cross in the midbrain to join the medial longitudinal fasciculus (MLF) at the medulla and travel in the anterior funiculus to the cervical levels C1–C4 to synapse in laminas VI, VII, and VIII.
Fibers have more direct connections to the anterior motor neurons than the corticospinal tracts.

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