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56 Cards in this Set

  • Front
  • Back
what are the 5 regions of the brain (from anterioposterior back)
which part of the brain is derived from the anterior part of the embryonic forebrain vesicle
what does the telencephalon form and what does it have in it
-forms the Right and Left CEREBRAL HEMISPHERES
-contains Olfactory Nerves and Associated structures
what portion of the brain lies rostral to the midbrain
what does the diencephalon form
-forms THALAMUS in the middle
-EPITHALAMUS on the posterior side
-HYPOTHALAMUS and PITUITARY GLAND on the ventral side
which region of the brain is the midbrain
how is the mesencephalon identified
by the
-superior and inferior colliculi on its DORSAL surface, and
-cerebral peduncles on its VENTRAL aspect
what is the most rostral portion of the brainstem
mesencephalon (midbrain)
which region has the hindbrain
what is the cerebellum formed by
an outgrowth of the metencephalon
which region is the cerebellum found in
which region contains the medulla
which lobe is the largest in the brain
frontal lobe
what is the Central Sulcus (of Rolando)
a major sulcus that separates the frontal and parietal lobes (on the lateral aspects)
what does the anterior bank of the Central Sulcus contain
primary motor cortex
what does the posterior bank of the Central Sulcus contain
sensory cortex
what is the Lateral Fissure (of Sylvius)
seperates the Temporal lobe from the Frontal and Parietal lobes
(found on both sides of the brain)
what is the Precentral Gyrus
-gyrus that lies just ANTERIOR to the Central Sulcus
-contains the primary MOTOR CORTEX
what do the axons of the Olfactory Nerve (CN 1) pass through and synapse in
-pass through = the cribiform plate of the Ethmoid bone

-synapse in = the INFERIOR aspect of the Olfactory BULB
what is the Olfactory Bulb
a relay station:
-receives AXONS from the olfactory nerve
-transmits the information via the Olfactory TRACT to higher centers
where is the Septum Pellucidum
between the 2 lateral ventricles
what is the Lateral Ventricle
a fluid-filled chamber within one of the cerebral hemispheres
how do the 3 horns of the lateral ventricle extend
-ANTERIOR towards the Frontal lobes
-POSTERIOR towards the Occipital lobes
-INFERIOR into the Temporal lobe
what is the Choroid Plexus
a special epithelium in the ventricles that produces CEREBRAL SPINAL FLUID (csf)
where is the Interventricular Foramen (of Monro)
between the lateral ventricles and the third ventricles
what is the Corpus Callosum
-a large bundle of fibers in the midline
-connects the Cortices of the 2 cerebral hemispheres
what does the occipital lobe function as
the visual cortex
what is the Parieto-Occipital sulcus
an imaginary line from sulcus to PREOCCIPITAL NOTCH that separates the parietal and occipital lobe
what does the preoccipital notch do
separates the parietal and occipital lobes
what is the Calcarine Fissure
-a major fissure on the medial aspect of the occipital lobe

-contains the VISUAL CORTEX
what does the Calcarine Fissure divide the occipital lobe into
into the superior CUNEUS and inferior LINGUAL GYRUS
what is the cuneus
the superior region of the occiptial lobe
what is the lingual gyrus
the inferior region of the occipital lobe
what is the parietal lobe
the lobe of the brain that lies between the frontal and occipital lobes
what is the postcentral gyrus
-gyrus that lies just Posterior to the Central Sulcus
-contains the Primary SOMATIC Sensory Cortex
what is the Temporal Lobe
the lobe that lies just inferior to the Lateral Fissure
what is the Insula
the part of the cerebral hemisphere that is BURIED WITHIN the depths of the Lateral Fissure
(hidden by parietal, frontal, and temporal lobes from view)
what does the insula form
forms the floor of the Lateral Sulcus
what is the Basal Ganglia
-a group of NUCLEI, lying deep in the Subcortical White Matter, of the FRONTAL LOBE

-organizes MOTOR behavior
what are the parts of the basal ganglia
caudate nucleus (comet shaped)
globus pallidus
what does the caudate nucleus surround
-wraps around the thalaums
-extends into the temporal lobe as part of the roof of the Inferior Horn of the Lateral Ventricle
where is the head of the caudate nucleus located
rostral to the anterior limb of the Internal Capsule
what is the body of the caudate nucleus made of
the body is the SUPERIOR-MEDIAL surface of the thalamus
where is the tail of the caudate nucleus located
the tail continues to reach the Amygdaloid Nucleus in the Uncus of the temporal lobe
what is the Optic Nerve (CN 2) and where does it extend
-nerve containing axons of the Retinal Ganglion cells
-extends from the Eye to the Optic Chiasma
what is the Optic Chiasma
junction of the 2 optic nerves on the VENTRAL aspect of the Diencephalon
what is the Optic Tract
the axons of the Retinal Ganglion cells after they have passed the Optic Chiasma, en route to the Lateral Geniculate Nucleus of the Thalamus
what is the Anterior Commissure
-a small midline fiber tract
-found on the Anterior end of Corpus Collosum
-also connects the 2 hemispheres
how does the 3rd ventricle of diencephalon communicate with the 4th ventricle
via Cerebral Aqueduct
what is the Pineal Gland and what is it a part of
-a midline Neural structure
-found on the Dorsal surface of the midbrain
-part of the EPITHALAMUS
what is the primary function of the thalamus
a relay station
what is the Medial Geniculate Body
major thalamic relay for AUDITORY info
what is the Lateral Geniculate Body
major thalamic relay for VISUAL info
where is the Hypothalamus located in relation to the Thalamus
-lies INFERIOR to the Thalamus
-seperated from thalamus by a groove, Hypothalamic Sulcus
what connects the hypothalamus and the pituitary gland
what are the components of the hypothalamus
-Tuber cinereum
-Hypothalamic sulcus
-Mammillary body
-Pituitary gland