What is the function of Edinger-Westphal nucleus?
The Edinger–Westphal nuclei provide preganglionic input to the ciliary ganglion mediating the pupillary light reflex and accommodation responses of the lens (i.e., the ciliary body).
What is Edinger-Westphal?
The Edinger-Westphal nucleus is a small parasympathetic motor nucleus in the midbrain and one of the two nuclei for the oculomotor nerve. It is one of the cranial nerve nuclei.
Where in the brainstem is the Edinger-Westphal nucleus located?
midbrain
The EWpg is what is thought of as the classic ONC—sending parasympathetic nerve fibers towards the eye. It is located in the midbrain immediately dorsal to the oculomotor nucleus near the level of the superior colliculus, which is why it is often included in the overarching term oculomotor complex.
What is function of red nucleus?
The red nucleus is a large structure located centrally within the tegmentum that is involved in the coordination of sensorimotor information. Crossed fibres of the superior cerebellar peduncle (the major output system of the cerebellum) surround and partially terminate in the red nucleus.
Which structure coordinates the activity of oculomotor neurons to create conjugate movements of two eyes?
gaze centers
The gaze centers function to coordinate and control the activity of motor neurons to insure that the extraocular muscles act synergistically to produce conjugate saccades.
What is the function of tractus solitarius?
Nucleus tractus solitarius is involved in generating and synchronizing the peristaltic activity of the upper gastrointestinal tract during swallowing. The rhythmic release of inhibitory (GABA) and excitatory (glutamate) neurotransmitters is responsible for the sequential motor pattern seen in peristalsis.
Where is the nucleus tractus Solitarius located?
medulla oblongata
The visceral sensory part of the brainstem has a single nucleus found in the medulla oblongata, the nucleus solitarius, which is located lateral to the motor nucleus of the vagus nerve. At the center of the nucleus, a bundle of nerve fibers runs through it to innervate the nucleus, which is the tractus solitarius.