Knowra Pons Pons The pons is a region of the brainstem that relays signals among the cerebrum, cerebellum, and spinal cord. It also contributes to breathing, sleep, and facial sensation and movement.
Pontine nuclei : Clusters of neurons in the pons that relay information from the cerebral cortex to the cerebellum. They carry cortical plans across the pons to the cerebellum for coordination.
Brainstem : The part of the brain connecting the cerebrum with the spinal cord, comprising the midbrain, pons, and medulla. The pons is the middle division of this three-part structure.
Locked-in syndrome : A condition of near-total paralysis with preserved consciousness, often caused by damage to the ventral pons. Pontine injury can interrupt motor pathways while sparing awareness and some eye movements.
Reticular formation : A network of neurons extending through the brainstem that contributes to arousal, attention, and autonomic regulation. It spans the pons and other brainstem levels rather than naming one discrete region.
Middle cerebellar peduncle : A large bundle of nerve fibers connecting the pons to the cerebellum. It carries much of the information relayed by pontine nuclei into the cerebellum.
Medulla oblongata : The lowest part of the brainstem, continuous with the spinal cord and containing vital autonomic centers. It lies directly below the pons and shares control of essential functions such as breathing.
Central pontine myelinolysis : A form of osmotic demyelination that damages myelin in the central pons, often after rapid correction of hyponatremia. The condition is defined by characteristic injury within this region.
Cerebral peduncle : A bundle of descending and ascending fibers in the midbrain connecting the cerebrum with lower regions. It carries pathways near the pons but belongs to the midbrain above it.
Cranial nerves : Twelve pairs of nerves that connect the brain with structures of the head, neck, and trunk. Several cranial nerves have nuclei in the pons or emerge from its surface.
Midbrain : The upper part of the brainstem, involved in movement, sensory processing, and arousal. It borders the pons above, completing the brainstem’s adjacent divisions.
Show all 21