Which of the following structures is involved in visual reflexes among others?

The structure involved in visual reflexes is the superior colliculi. These are part of the midbrain and play a crucial role in the processing of visual information as well as in coordinating eye and head movements. The superior colliculi receive input from the retina and visual cortex, allowing them to integrate various visual signals and initiate reflexive responses to visual stimuli. This is vital for functions such as tracking motion and orienting the head towards visual events.

In addition to their role in visual reflexes, the superior colliculi are also involved in multisensory integration, allowing the brain to formulate a comprehensive response based on different types of sensory input. This makes them a key structure in both visual and non-visual reflexes.

Other structures mentioned in the question have different primary functions. For example, the inferior colliculi are primarily involved in auditory processing, while the cuneate tubercle is associated with the sensory pathways for the upper body, particularly for touch and proprioception. The olive of the medulla has a role in motor control and coordination but is not directly involved in visual reflexes. Thus, the superior colliculi stand out as the critical structure for visual reflexes among the options given.