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Related Flashcards
Cards In This Set
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Embryonic development that forms the brain by increasing the number of neurons is called?
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Cephalization
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What is the name of the embryonic tissue that all brain tissues come from?
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Ectoderm
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Prosencephalon, mesencephalon and rhombencephalen refer to what respectively?
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Primary Brain Vesicles:Prosencephalon- in the forebrainMesencephalon- in the midbrainRhombencephalen- in the hindbrain
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The telencephalon is made up of two structures...they are?
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Cerebrum: cerebral hemispheres(cortex, white matter, basal nuclei)
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The diencephalon makes up three structures...they are?
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1) Thalamus2) Hypothalamus3) Epithalamus
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The spinal cord comes from what embryonic structure?
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Neural tube
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Name the 2 flexures
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1) midbrain2) cervical
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Convolutions and fissures form because...
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By week 26, the continued growth of the cerebral hemispheres causes their surfaces to crease and fold into convulsions.
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Ventricles are spaces that allow for the flow of what?
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The hollow ventricular chambers are filled with cerebrospinal fluid and lined by ependymal cells, a type of neuroglia.
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Lateral ventricles are found where?
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Deep within cerebral hemisphere
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The third and fourth ventricle are found where?
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Third--In the diencephalon via a channel called an interventricular foramen Fourth--the hindbrain
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The cerebral spinal fluid fills the ventricles from what space?
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Subarachnoid space
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What form the majority of the brain in mass...roughly 83%
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Cerebral hemispheres
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Name the three brain markings
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1) gyri (ridges of tissue)2) sulci (shallow grooves)3) fissures (deep grooves)
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Which brain marking divides the brain into 5 areas or sulcus
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Sulci
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