Trigeminal Nerve Pontine Nuclei Medial Lemniscus Caudal

Neuro Resources: Good quizzes on these pathways: http://library.med.utah.edu/kw/animations/hyperbrain/pathways/index.html

More brain stem stuff: http://thalamus.wustl.edu/course/ http://www.neuroanatomy.wisc.edu/virtualbrain/Index.html Amazing ear website, do check this one out: http://www.cochlea.org/ Couple cute simulations: http://www.rockefeller.edu/labheads/hudspeth/graphicalSimulations.php Animations for hearing and vestibular system: http://www.sumanasinc.com/webcontent/animations/neurobiology.html

Tricks when looking at cross sections 1. Look at the perimeter of the section and associate the lumps and indentations with landmarks on the surface of a whole specimen. Pay particular attention to colliculi of the midbrain and to cerebellar peduncles. 2. Each level of the brain stem contains one or two conspicuous internal objects, which should be committed to memory. These are: Closed medulla:

Pyramidal decussation (at the most caudal level) Internal arcuate fibres (at a more rostral level) Open medulla: Inferior olivary nucleus Pontomedullary junction: Abducens nucleus Fibres of facial nerve Mid-pontine level: Trigeminal nerve Pontine nuclei Medial lemniscus Caudal midbrain: Decussation of superior Cerebellar peduncles Rostral midbrain: Red nucleus Oculomotor nerve