Brainstem Nuclei Flashcards
What are the 7 cranial nerve modalities
SSA, GSA, SVA, GVA, GVE, SVE, GSE
Sensory information about balance, vision, or hearing is received by which type of brainstem nuclei?
Special sensory afferent
Sensory info from receptors in skin, muscles and joints is mediated by which type of cranial nerve?
General somatic afferent
Sensory info about taste is mediated by which type of cranial nerve?
Special visceral afferent
Sensory info from viscera and core is mediated by which type of cranial nerve?
General visceral afferent
Preganglionic autonomic fibres to the core epresent which type of cranial nerve modality?
General visceral efferent
Branchial motor efferents represent which type of cranial nerve modality? (E.g. motor info to jaw, face, larynx or pharynx)
Special visceral efferent
Motor info to skeletal muscles represents which type of cranial nerve modality?
General somatic efferent
What is the function of the spinal trigeminal nucleus?
Receives input from cranial nerves V (trigeminal), VII (facial), IX (glosso-), and X (vestibulocochlear) about deep/crude touch, pain, and temperature from the ipsilateral face.
Which brainstem nuclei are closest to the midline?
GSEs: III (occulomotor) [midbrain], IV (trochlear) [midbrain], VI (abducens) [pons], XII (hypoglossal) [medulla]
In which part of the brainstem are most cranial nerve nuclei located?
Medulla
Which brain stem nuclei are associated with GSAs?
Mesenphalic nucleus of V, chief sensory nucleus of V, spinal nucleus of V [V, IX, X]
What is the only SSA nucleus?
Vestibulocochlear (e.g., hair cells); most lateral/posterior organization based on position in brainstem
Which brainstem nuclei are associated with CV III (occulomotor)
CN III is both GSE and GVE
GVEs synapse at the Edinger-Westphal Nuclei (rostral midbrain)
GSA synapse at the occulomotor nucleus (rostral midbrain)
