Pons Flashcards
Deep Pontine Nuclei
location
Basilar Pons
Deep Pontine Nuclei
function
- Project to contralateral cerebellar hemispheres via middle cerebral peduncle
- Involved in conveying info from the motor cortex to the cerebellum regarding intended movement(s) of contralateral limbs
Cerebellar Peduncles
location
Superior and middle: Pontine tegmentum
Inferior: caudal pontine tegmentum
Cerebellar Peduncles
function
- Superior Cerebellar Peduncle: afferent & efferent fibers between cerebellum and midbrain
- Middle Cerebellar Peduncle: afferent fibers only, between cerebellum and pons
- Inferior Cerebellar Peduncle: afferent and efferent fibers between cerebellum and medulla
Deep Cerebellar Nuclei
location
Caudal Pontine Tegmentum
Deep Cerebellar Nuclei
function
• Primary output target for all information coming out of the cerebellum
Locus Ceruleus
location
Rostral Pontine Tegmentum
Locus Ceruleus
function
• Primary site of norepinephrine production in the brain
Raphe Nuclei
location
Rostral Pontine Tegmentum (Also: Caudal Midbrain)
Raphe Nuclei
function
• Major serotonin-producing neurons in the brain
Superior Olivary Complex/Nuclei
location
Caudal Pontine Tegmentum
Superior Olivary Complex/Nuclei
function
• Contribute to both ascending and descending input for auditory function
Trapezoid Body
location
Caudal Pontine Tegmentum
Trapezoid Body
function
- Ascending auditory pathway fibers carrying information from cochlea that decussate before traveling to superior olivary nuclei that is thought to help with localization of sound
Trigeminal Nuclei
(Trigeminal Nuclear Complex)
location
Pontine Tegmentum
