The corticobulbar tract is a neural pathway that connects the cerebral cortex to the brainstem. It plays a crucial role in controlling voluntary movements of the face, head, and neck by sending signals to the cranial nerves. These nerves are responsible for functions such as facial expression, chewing, and swallowing. This tract is part of the larger corticospinal tract, which controls movements of the limbs and trunk. The corticobulbar tract primarily influences motor functions by facilitating communication between the brain and various muscles, ensuring coordinated and precise movements in the upper body.