Nervous System Flashcards
frontal, temporal & occipital.
poles
supero-lateral, medial & inferior.
surfaces
supero-medial, infero-lateral &infero-medial
borders
frontal, parietal, temporal , occipital & limbic.
lobes
separates the frontal lobe anteriorly from the parietal lobe posteriorly.
The central sulcus
separates the temporal lobe inferiorly from both frontal &parietal lobes superiorly.
The lateral sulcus
limits the occipital lobe posteriorly from the parietal lobe anteriorly.
The parieto-occipital sulcus:
consists of dense collections of myelinated fibers
White matter
Bundles of nerve fibers (neuron processes)
White matter
Bundles of nerve fibers (neuron processes)
running through the CNS are
tracts
Bundles of nerve fibers (neuron processes)
running through the PNS are
nerves
unmyelinated regions of the CNS (unmyelinated fibers and cell bodies)
Gray matter
small collections of cell bodies are found in a few sites outside the CNS in the PNS.
Ganglia
located in the parietal lobe posterior to the central sulcus
The primary somatic sensory area
allows to recognize pain, differences in temperature, or a light touch
The primary somatic sensory area
located in the frontal lobe anterior to the central sulcus,
The primary motor area
consciously move our skeletal muscles
The primary motor area
found at the base of the precentral gyrus (the gyrus anterior to the central sulcus)
The motor speech area(Broca’s area
located at the junction of the temporal, parietal, and occipital lobes,
Sensory Speech area
allows you to sound out words.
Sensory Speech area
it acts as a gateway for the cerebral cortex
) The Thalamus
Relays sensory impulses to cerebral cortex
) The Thalamus
Relays impulses between cerebral motor cortex
and lower motor centers
The Thalamus
2 cerebellar hemispheres, connected by
median vermis.
