Week 2: Pons Structures and Functions Flashcards
Where is the deep pontine nuclei located?
basilar pons
What structure is located in the basilar pons?
deep pontine nuclei
What is the function of the deep pontine nuclei?
send projections to the cerebellum regarding intended movements of contralateral limbs
where are the superior and middle cerebellar peduncles located?
the pontine tegmentum
where is the inferior cerebellar peduncles located?
Caudal pontine tegmentum
What is the function of the superior cerebellar peduncle?
- afferent and efferent fibers run between the cerebellum and midbrain
What is the function of the middle cerebellar peduncle?
afferent fibers ONLY, between cerebellum and pons
What is the function of the inferior cerebellar peduncle?
afferent and efferent fibers between cerebellum and medulla
Where are the deep cerebellar nuclei located?
caudal pontine tegmentum
what is the function of the deep cerebellar nuclei?
primary output target for all information coming out of the cerebellum
where is the locus ceruleus?
Rostral pontine tegmentum
what is the function of the locus ceruleus?
Major norepinephrine production center of the brain
where is the raphe nuclei located?
Rostral pontine tegmentum and caudal midbrain
what is the function of the raphe nuclei?
major serotonin production center of the brain
where is the superior olivary complex/nuclei located?
caudal pontine tegmentum
what is the function of the superior olivary complex/ nuclei?
Contributes to both ascending and descending input for auditory functions
where is the trapezoid body located?
caudal pontine tegmentum
what is the function of the trapezoid body?
ascending auditory pathway fibers carrying information from the cochlea that decussate before traveling to superior olivary nuclei that is thought to help with localization of sound
What structure’s function acts as a major serotonin production center in the brain?
Raphe nuclei
What structure has a function as a major norepinephrine production center in the brain?
locus ceruleus
what “other important nuclei” that we learned this week are located in the rostral pontine tegmentum?
raphe nuclei and locus ceruleus
What structures in the pontine tegmentum are solely located in the caudal pons?
inferior cerebellar peduncles deep cerebellar nuclei trapezoid body superior olivary nuclei All cranial nerves are located caudally but not all are located rostrally
