![]() ![]() The floor of the fourth ventricle constitutes the dorsal surface of the pons, along with that of the medulla oblongata. ![]() Region of the pons and the superior boundary of the medulla oblongata. The pontomedullary junction: this is marked by the angle between the inferior These fibers wrap around the remainder of the brainstem. This bundle of nerves connects to the cerebellum and constitutes the main afferent source of neuronal information to the cerebellum.Ī large portion of the information sent via the pontocerebellar fibers concerns the planning and execution of fine movements, specifically, movements of the arm, forearm, and hand. ![]() The same area from which these cranial nerves emerge is distinguished by a bulge formed by a structure called the transverse pontocerebellar fibers. There! Other External Anatomical Features of the Pons That the functionality of the pons is wide-reaching. This structure emerge from the ventral surface of the pons.Įven if we were to stop here, it is clear The abducens controls the movement of the eye, facial nerve controls the expressions of the face (therefore controls the relay of neuronal signals from the brain to all of the fine muscles in the face – that is a lot to manage!) and the sense of taste and the vestibulocochlear regulates the equilibrium and auditory sensations.Īll of the cranial nerves associated with This collection of nerves controls sensory information gathered from organs of the face and the motor control of chewing. The trigeminal nerve is the largest cranial nerve and earns its name from its three branches: the ophthalmic, maxillary, and mandibular nerves. All of the cranial nerves originate from the same side of the basilar groove, with the exception of the trigeminal nerve.īecause of its abundance of nerve connections, the pons is involved in many nervous system functions ranging from sensory to motor functions. In the center of the pons is an indentation, or line, called the basilar groove (also where the basilar artery is located). The pons is vital to the central and peripheral nervous system – a major reason for this being its connections to several cranial nerves including the trigeminal, abducens, facial, and vestibulocochlear nerves. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |