Front | Back |
Oculomotor nucleus
|
Location: Midbrain, level of superior colliculus, midline, ventral to cerebral aqueduct
Function: Somatic Motor (eye movements); Para (pupil constriction) Blood: Paramedian branches of basilar |
Edinger-Westphal
|
Location: Midbrain, level of superior colliculus, medial
Function: contains cell bodies of preganglionic parasympathetic fibers for eye Blood: Paramedian branches of basilar |
Trochlear
|
Location: Midbrain, level of inferior colliculus, medial
Function: Motor to superior oblique muscle (eye intorsion) Blood: Basilar |
Main Sensory V
|
Location: Pons, lateral, dorsal
Function: Primary sensory neuron cell bodies for sensation in the face, mouth, sinuses Blood: Basilar |
Motor V
|
Location: Pons, lateral, dorsal
Function: Muscles of mastication, tensor tympani Blood: Basilar |
Spinal V
|
Location: Medulla and Pons, lateral/ventral
Function: Crude touch, pain, temperature from the face Blood: AICA-Basilar/PICA-Vertebral |
Mesencephalic V
|
Location: Midbrain, dorsal/lateral to cerebral aqueduct, bordering periaqueductal gray
Function: Proprioception, Jaw-Jerk reflex Blood: SCA, proximal PCA |
Abducens
|
Location: Pons, medial, dorsal
Function: Motor to lateral rectus Blood: Basilar |
Facial Motor
|
Location: Pons, medial-lateral, dorsal
Function: Muscles of facial expression, stapedius Blood: AICA/Basilar |
Vestibular Complex
|
Location: Medulla/Pons, Floor of 4th ventricle, latera
Function: Vestibular sensation Blood: AICA/Basilar, PICA/Vertebral |
Dorsal and Ventral Cochlear
|
Location: Pontomedullary junction, dorsal and ventral to inferior cerebellar peduncle, lateral
Function: Hearing sensation from ipsilateral ear Blood: AICA/Basilar |
Nucleus of Solitary Tract
|
Location: Medulla, lateral to Motor X, Dorsal
Function: Taste (VII, IX, X), Destination for visceral afferents Blood: PICA/Vertebral |
Nucleus Ambiguus
|
Location: Medulla, mediolateral, dorsoventral
Function: Motor to pharyngeal and laryngeal muscles Blood: PICA/Vertebral |
Dorsal Motor X
|
Location: Medulla, Dorsal, Medial (just lateral to XII)
Function: Parasympathetic to heart, lungs, digestive tract Blood: PICA/Vertebral |
Hypoglossal
|
Location: Medulla, Seriously Medial, Dorsal
Function: Motor to tongue Blood: Vertebral |