Neuroanatomy Flashcards
What are the 4 lobes of the cerebrum?
Occipital lobe
Parietal lobe
Frontal love
Temporal Lobe
What makes up the brainstem?
Midbrain
Pons
Medulla
What cranial nerves originate from the brainstem?
CN III-XII
What does the medulla continue as?
The spinal cord at the foramen magnum
What are some surface features of the medulla?
Pyramids and their decussation
Olives laterally
Pyramids medially
CN IX, X, XI and XII
How is the medulla connected to the cerebellum?
By the inferior peduncles
Which ventricle lies posterior to the pons?
IV
What are the surface features of the pons?
Middle cerebellar peduncles
Cranial nerve V, VI, VII and VII originate here
Why is CN V a chunky nerve?
Due to its splitting into V1,2,3
Where does the midbrain develop from?
Mesencephalon
What is the central cavity of the midbrain?
Cerebral aqueduct
What connects the midbrain to the cerebellum?
Superior cerebellar peduncle
What connects the midbrain to the cerebrum?
Cerebral peduncle
What does the corpora quadrigemina compose of?
Superior and inferior colliculus
Which CN originate from the midbrain?
III, IV
Which is the only CN to emerge posteriorly?
CN IV
What makes up the brainstem?
Midbrain
Pons
Medulla
What does the cerebral aqueduct connect?
III and IV ventricles
What is the only feature that can be seen in specimen on the midbrain?
Substantia nigra
What does each hemisphere of the cerebellum have?
A anterior
Posterior and flocculondular lobe
What are some signs of abnormalities in the cerebellum?
Finger - nose test
Knee- heel test
Walking in a straight line
What are the structures of the diencephalon?
Thalamus
Hypothalamus
Epithalamus
What makes up 8-% of the diencephalon?
Thalamus
Where do 3rd order neurons in sensory pathways always synapse?
At the thalamus
