Brainstem: Gross Anatomy Flashcards
What are the 4 parts of the Tegmentum?
1) Superior cerebellar peduncles
2) Reticular formation
3) Medial lemniscus
4) Ventral tegmentum area
What are the 2 parts of the Tectum - and main sensory modality for each?
1) Superior colliculus - vision
2) Inferior colliculus - auditory
What are the 3 main parts of the Brainstem?
Midbrain, pons, medulla
What sensory modality is linked to the cerebral peduncle?
Motor
What part of the brainstem holds the olivary body and pyramid?
Medulla
What sensory modality is associated with Superior colliculus?
vision
What sensory modality is associated with Inferior colliculus?
auditory
What are the 2 parts of the olivary body, and what modalities are they associated with?
1) superior olivary complex - auditory system
2) inferior olivary nucleus - spinocerebellar coordination (spinal cord to the cerebellum to regulate motor coordination and learning)
What are the 2 parts of the pyramidal tracts of the medulla?
corticospinal and corticobulbar
Where is the olivary body located?
medulla of brainstem
Which part of the brainstem are the pyramidal tracts located?
medulla of brainstem
In a transverse section view, in which part of the brainstem do you see a butterfly?
rostral medulla at the level of inferior olivary nucleus
What is the role of the nucleus solitarius?
important command center - sends thalamus info, sensory info
Also autonomic regulation
Which areas produce dopamine?
ventral tegmentum area and substantial nigra
