Pontine nuclei — Flashcards

Flashcard 1: The _____ nucleus is coexistent with the paramedian pontine reticular formation (PPRF), the center for ipsilateral horizontal gaze

Answer: abducens

Flashcard 2: Lesions to the abducens nucleus may result in complete, ipsilateral _____ paralysis, in addition to symptoms of abducens/PPRF lesion

Answer: facial

Flashcard 3: The emboliform and globose nuclei send axons that decussate in the _____ and then synapse in the red nucleus of the midbrain

Answer: superior cerebellar peduncle

Extra:   https://onlinemeded.org/spa/neurology?ref=anki 

Flashcard 4: Which brainstem nucleus is located in the vestibular area of the floor of the 4th ventricle and receives sensory input for balance?

Answer: Vestibular nucleus

Flashcard 5: paramedian pontine reticular formation (PPRF)

Answer: eyes look away from side of lesion

Flashcard 6: Where is the locus ceruleus located?

Answer: pons

Flashcard 7: Where is the raphe nucleus located?

Answer: pons

Flashcard 8: medial geniculate nucleus (MGN)

Answer: superior olive, inferior colliculus of tectum

Extra: hearing medial = music auditory cortex (temporal lobe)

Flashcard 9: ID Nucleus: _____ - Located in **rostral midbrain** - **Anterolateral** to cerebral aqueduct - **Anterior** to nucleus of Edinger-Westphal

Answer: Nucleus of CN III

Flashcard 10: The _____ is the medullary nucleus that receives fine touch and proprioception from the lower body.

Answer: nucleus gracilis

Extra: The nucleus gracilis is located in the medulla and receives primary afferent fibers from the fasciculus gracilis, which carries fine touch, vibration, and proprioception from the lower body (below T6 level). In contrast, the nucleus cuneatus receives input from the fasciculus cuneatus (upper body, above T6).