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19 Cards in this Set
- Front
- Back
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Columns
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Grey Matter
Groups of neural cell bodies within the CNS In cortex, a group of nerve cell bodies related in function and in the location of the stimulus that drives them (perpendicular to cortical plane); so neuron cell bodies in different layers can also be functionally related via columns In spinal cord, a group of functionally related nerve cell bodies parallel to the long axis |
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Layer/Lamina/Stratum
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Grey Matter
Functionally related neurons that form parallel sheet of cells within specific regions of CNS |
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Tract/Fasciculus/Lemniscus
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White Matter
Bundle of parallel myelinated axons within the CNS |
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Funiculus
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Group of several parallel axonal tracts (fasciculi)
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Root/Ramus/Nerves
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Bundle of parallel axons and associated cells in the PNS
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Nerve
Neuron Nerve Fiber Neurites Neuropil |
Nerve: Collection of parallel axons and support cells
Neuron: nerve cell, individual cell Nerve fiber: axon, associated with support sheath Neurites: projection off a cell body of a neuron (axon or dendrite) (development in vitro) Neuropil: Collection of unmyelinated dendrites, axons and support cells within the CNS, form synaptically dense area |
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Telencephalon
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Cerebral Cortex
Hippocampus Basal Ganglia Basal Forebrain Olfactory Bulb Associated with Lateral Ventricle |
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Diencephalon
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Dorsal Thalamus
Hypothalamus Associated with Third Ventricle |
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Mesencephalon
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Ventral Midbrain Colliculi
Associated with Cerebral Aqueduct |
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Metencephalon
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Cerebellum
Pons Associated with 4th Ventricle |
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Myelencephalon
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Medulla
Associated with 4th Ventricle |
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Cerebral Hemispheres
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Telencephalon
Divided into Frontal, parietal, occipital and temporal lobes Insula: small area of cerebral cortex is buried within the depths of the lateral fissure |
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Fornix
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Major axon bundle
Connects hippocampus with hypothalamus |
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Cingulum/Aracuate Fasciculus
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Axon bundles that connect regions within one hemisphere only
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Massa intermedia/Thalamic Adhesion
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In most individuals
Region where each thalamus touches the other, but there are no crossing fibers in this structure |
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Cerebral Peduncles
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Connections from brainstem to the cerebral hemispheres
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Cerebellar Peduncles
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Connect the cerebellum to the brainstem
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Deep Gray matter in Cerebrum
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Amygdala, Hippocampus, Basal Ganglia
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Brainstem
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Midbrain, Pons, Medulla
Tracts between the cerebrum and spinal cord must extend through the brainstem Source or target of most cranial nerves Regulates Cardiac and Respiratory Functions |
