The pneumotaxic center of this structure regulates breathing.  
Lesions in this structure and in the MLF cause one-and-a-half syndrome. Cinelli discovered that, uniquely in lampreys, a central pattern generator in this structure drives oscillations. This structure is supplied blood by namesake perforating branches of the basilar artery. The dorsal part of this structure, the tegmentum, contains the salivary nuclei. The inspiratory off switch is regulated by the KF and parabrachial regions of this part of the brain. Norepinephrine is synthesized by its (*) coeruleus nucleus. A stroke or demyelination here is the most common cause of locked-in-syndrome. Conjugate gaze palsies can be caused by lesions in this structure at the nucleus of the sixth cranial nerve. It and the cerebellum originate from the metencephalon. The pneumotaxic center of this structure regulates breathing.  For 10 points, name this part of the brain stem located between the midbrain and medulla.
Lesions in this structure and in the MLF cause one-and-a-half syndrome.
pons [prompt on midbrain; prompt on brainstem]