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32 Cards in this Set
- Front
- Back
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name the three primary divisions of the brain
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Prosencephalon (forebrain)
Mesencephalon Rhombencephalon(hindbrain) |
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what are the subdivisions of the major brain divisions?
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prosencephalon - Telencephalon and Diencephalon
Mesencephalon - Mesencephalon Rhombencephalon - Metencephalon and Myelencephalon |
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Name the major derivatives of the Telencephalon
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RBC
Rhinencephalon Basal Ganglia Cerebral Cortex |
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Name the major derivatives of the Diencephalon
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PHONT
Pineal Hypothalamus Optic Nerves Neurohypophysis Thalamus |
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Name the major derivatives of the Mesencephalon
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mesencephalon
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Name the major derivatives of the Metencephalon
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Cerebellum
Pons |
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Name the major derivatives of the Myelencephalon
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Medulla
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What are the cavities of the
Telencephalon Diencephalon Mesencephalon and Met/Myelencephalon |
Telencephalon - Lateral ventricles
Diencephalon - Third Ventricle Mesencephalon - Aqueduct of Sylvius and Met/Myelencephalon - Fourth Ventricle |
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General info about the telencephalon
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it is composed of 2 cerebral hemispheres seperated by a Longitudinal Fissure (aka interhemispheric fissure)
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what seperated the frontal and parietal lobe?
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the central sulcus
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what is the primary function of the precentral gyrus
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primary motor cortex, directly controls all voluntary movement
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what is the primary function of the postcentral gyrus
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primary somatosensory cortex
(located in the parietal lobe) |
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what divides the temporal from the frontal lobe?
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the lateral or sylvian fissure
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the Primary auditory cortex is located within what lobe
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temporal lobe
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Is the calcarine sulcus located on the lateral surface or the medial surface of the brain? and what two lobes does it seperate
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it is located medially and can only be roughly approximated on the lateral surface. It runs rostro-caudally and joinds the parieto-occipital sulcus at it's rostral tip
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which direction does the parietooccipital sulcus run?
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dorso-ventrally
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What is the ventral surface of the frontal lobe called?
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the orbital surface
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what is the ventral surface of the occipital lobe called?(covered by cerebellum)
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tentorial surface
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what is the ventral surface of the temporal lobe?>
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parahippocampal gyrus
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what is the parahippocampus made of?
neocortex or allocortex |
allocortex(phylogenetically older, the most medial part of the parahippocampus is the uncus
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Name the boundaries of the diencephalon
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optic chiasm rostrally
optic tracts cerebral peduncle caudally |
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what is the most caudal and ventral hypothalamic structure?
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the mamillary bodies, (mamillary bodies = hypothal = diencephalon)
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what seperates the thalamus from the hypothalamus
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the hypothalamic sulcus
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what structure is just rostral to the mam bods?
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the infundibulum of the pituitary
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where are the pineal bodies located in relationship to the thalamus
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dorsal, it is part of the epithalamus
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what nerve is the only one to decussate before emerging from the brain and which emerge dorsally?
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the IV trochlear paired nerves
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what structures form the roof of the midbrain?
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the tectum ie inferior and superior colliculi
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where is the tegmentum?
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midbrain substance ventral to the aqueduct
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what fissure is located between the pyramids?
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the ventral(anterior) median fissure
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what structures are on both sides of the dorsal (posterior) median sulcus?
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the Fasiculus gracilis and more laterally the fasciculus cuneatus
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what artery generally supplies the forebrain?
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Internal carotids
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what artery generally supplies the brainstem and cerebellum?
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vertebral
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