Temporal Lobe
Ashley Davidoff MD
Copyright 2010
Definition
The temporal lobe is part of the forebrain and is located at the side of the brain beneath the Sylvian fissure.
The temporal lobe is an important area for many cognitive functions, including hearing, speech and memory and vision of complex shapes.
Structure
The temporal lobe is located in the middle and inferior part of the hemisphere. Behind, it is limited by an imaginary line continuing the parieto-occipital sulcus. Anteriorly and superiorly by the Sylvian fissure. It contains 3 convolutions (superior, middle and inferior temporal gyri) divided by 2 fissures (superior and middle temporal sulci).
Function
The temporal lobes process the immediate events in recent and remote memory. They receive and interpret sounds and images, store events in the form of memory and recall those already memorized the roads and generate emotional.
The superior temporal gyrus contains Wernicke’s area, which is invovled in the incorporation and comprehension of spoken language. From the lateral gyri, several short folds are apparent, which form the gyri of Heschl, which represents the primary auditory area. The hippocampus is located within the temporal lobe.
Disease
Memory of sounds and shapes tends to be affected; the understanding of language come from external or internal sources is dramatically impaired and typically prevents the individual to express himself through language. Individuals with may also develop personality changes, for example, lack of humor, unusual degrees of religiosity, obsessions, and loss of libido.
Dysfunction in the temporal lobe leads to memory impairment as well as difficulties producing and understanding speech.
Dysfunction is diagnosed through the observation of imapairment, cognitive and speech related tests, and neuroimaging to identify the cause. Treatment includes speech therapy as well as pharmocological agents to combat personality changes.
The Occipital Lobe (lime green) Part of the Forebrain (Prosencephalon) Member of the Cerebrum (Telencephalon) Member of the Cerebral Hemispheres |
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The basic and simplest classification of the brain into forebrain midbrain and hindbrain is shown in this diagram and advanced to a more complex tree using the embryological and evolutionary terminologies. The forebrain consists of the cerebrum also called the prosencephalon, which contains the more advanced form of the brain and the thalamic structures which contain more basic structures. The cerebrum (telencephalon) itself consists of two cerebral hemispheres and paired basal ganglial structures. Each cerebral hemisphere will have gray and white matter distributed in the frontal parietal temporal and occipital lobe, with the basal ganglia being part of the gray matter deep in the cerebral hemispheres. The most important thalamic structures arising from the diencephalons include the thalamus itself and the hypothalamus. The midbrain (mesencepaholon) consists of the tectum tegmentum and cerebral peduncles. The hindbrain has two major branch points based on the evolutionary development. The pons and cerebellum(part of the metencephalon) are grouped and the medulla (part of the myelencephalon is the second branch. Courtesy Ashley Davidoff MD Copyright 2010 All rights reserved 97686.8s |
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Conceptual Framework of the Brain |
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The vector of the forebrain (green) is folded at its anterior aspect as a projection of the frontal lobe and the posterior fold forms the temporal lobe. The midbrain (yellow has its axis just tipped slightly anteriorly and the hindbrain (salmon red) is tipped more posteriorly Courtesy Ashley Davidoff MD copyright 2010 all rights reserved |
The Central Sulcus is the Border between the Frontal Lobe and the Parietal Lobe |
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The forebrain is divided into the frontal lobe anetriorly, separated by the central sulcus (bright green), the parietal lobe separated from the occipital lobe by the parieto-occipital fissure (pink), and the temporal lobe separated from the frontal and occip[ital lobe by the Sylvian fissure (lateral sulcus) (red). The distinction between the occipital and temporal lobe is more of a functional division than a structural division Courtesy Ashley Davidoff MD copyright 2010 93887b03b05.8s |
83029d13.8s |
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This is a diagram looking at the forebrain from the side showing the anteriorly placed frontal lobe, inferiorly placed temporal lobe posteriorly placed occipital lobe and superiorly placed occipital lobe. In this view the size of the frontal lobe dominates and in fact it is the largest portion of the forebrain. Courtesy Ashley DAvidoff MD copyright 2010 all rights reserved 83029d13.8s |
Somatosensory Region Parietal Lobe Above the Sylvian Fissure (red) and Temporal Lobe Below |
| 71060c07.8s brain pain pathway somotosensory cortex S 2 SII operculum parietal lobe temporal lobe frontal lobe lateral sulcus Sylvian fissure MRI T1 weighted Courtesy Ashley Davidoff MD copyright 2008 |
Axial at a Lower Level |
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At a lower level the parietooccipital fissure (pink) defines the anterior edge of the occipital lobe posteriorly (purple). The Sylvian fissure (bright red lines) defines the temporal lobes (light red) Copyright 2010 all rights reserved 93914.36k.81s |
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Axial Projection MRI |
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The axial image is intended to demonstrate ttwo important fissures; the Sylvian fissure (in red) the parieto-occipital fissure (pink) in order to demonstrate the border between the frontal and temporal lobe in the axial plane and the junction of the temporal and occipital lobe MRI SENSE Courtesy Philips medicaL systems rendred by Davidoff art 92142c06b01 label.8s |
Coronal Projection Sylvian Fissure Parietal Lobe and Temporal Lobe |
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In this T2 weighted MRI image – the forebrain (green is seen centered aroubnd the ventriclar system. The red linees indicate the Sylvian fissures which in this instance in a relatively posterior cut reflect the parietal lobe superiorly and the temporal lobes inferiorly (darker green) The temporal lobes rest of the tentorium (white curvilinear convex lines). below the tenntorium is the midbrain and hind brain Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 89721c02b03.8s 89721c02b03 |
Posterior Coroanl Cut Temporal and Parietal Lobes |
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The coronal MRI shows the diversion of the ventriclesand their course inferiorly into the temporal horns allowing us to place the cut fairly posteriorly, and beyond the central sulcus, thus the superior aspect of the cut represents the parietal lobes, and the forebrain lying above the tentorium must represent the temporal lobes (red). Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 72246c02.8s |
Right Parietal and Temporal Lobe Acute Infarction |
| 71275c01.800 brain cerebrum acute right mca infarct parietal lobe temporal lobe right middle cerebral artery infarction a= CTscan b = DWI diffusion weighted imaging bright c= DWI d= T2 weighted MRI e = FLAIR |
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Posterior Coroanl Cut
Temporal and Parietal Lobes
The coronal MRI shows the diversion of the ventriclesand their course inferiorly into the temporal horns allowing us to place the cut fairly posteriorly, and beyond the central sulcus, thus the superior aspect of the cut represents the parietal lobes, and the forebrain lying above the tentorium must represent the temporal lobes (red).
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 72246c02.8s
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Posterior Coroanl Cut
Temporal and Parietal Lobes
The coronal MRI shows the diversion of the ventriclesand their course inferiorly into the temporal horns allowing us to place the cut fairly posteriorly, and beyond the central sulcus, thus the superior aspect of the cut represents the parietal lobes, and the forebrain lying above the tentorium must represent the temporal lobes (red).
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 72246c02.8s
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The coronal MRI shows the diversion of the ventriclesand their course inferiorly into the temporal horns allowing us to place the cut fairly posteriorly, and beyond the central sulcus, thus the superior aspect of the cut represents the parietal lobes, and the forebrain lying above the tentorium must represent the temporal lobes (red).
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 72246c02.8s
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The coronal MRI shows the diversion of the ventriclesand their course inferiorly into the temporal horns allowing us to place the cut fairly posteriorly, and beyond the central sulcus, thus the superior aspect of the cut represents the parietal lobes, and the forebrain lying above the tentorium must represent the temporal lobes (red).
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 72246c02.8s
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Coronal Projection Sylvian Fissure Parietal Lobe and Temporal Lobe
In this T2 weighted MRI image – the forebrain (green is seen centered aroubnd the ventriclar system. The red linees indicate the Sylvian fissures which in this instance in a relatively posterior cut reflect the parietal lobe superiorly and the temporal lobes inferiorly (darker green) The temporal lobes rest of the tentorium (white curvilinear convex lines). below the tenntorium is the midbrain and hind brain
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 89721c02b03.8s 89721c02b03
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Coronal Projection Sylvian Fissure Parietal Lobe and Temporal Lobe
In this T2 weighted MRI image – the forebrain (green is seen centered aroubnd the ventriclar system. The red linees indicate the Sylvian fissures which in this instance in a relatively posterior cut reflect the parietal lobe superiorly and the temporal lobes inferiorly (darker green) The temporal lobes rest of the tentorium (white curvilinear convex lines). below the tenntorium is the midbrain and hind brain
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 89721c02b03.8s 89721c02b03
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In this T2 weighted MRI image – the forebrain (green is seen centered aroubnd the ventriclar system. The red linees indicate the Sylvian fissures which in this instance in a relatively posterior cut reflect the parietal lobe superiorly and the temporal lobes inferiorly (darker green) The temporal lobes rest of the tentorium (white curvilinear convex lines). below the tenntorium is the midbrain and hind brain
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 89721c02b03.8s 89721c02b03
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In this T2 weighted MRI image – the forebrain (green is seen centered aroubnd the ventriclar system. The red linees indicate the Sylvian fissures which in this instance in a relatively posterior cut reflect the parietal lobe superiorly and the temporal lobes inferiorly (darker green) The temporal lobes rest of the tentorium (white curvilinear convex lines). below the tenntorium is the midbrain and hind brain
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 89721c02b03.8s 89721c02b03
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Axial Projection MRI
The axial image is intended to demonstrate ttwo important fissures; the Sylvian fissure (in red) the parieto-occipital fissure (pink) in order to demonstrate the border between the frontal and temporal lobe in the axial plane and the junction of the temporal and occipital lobe
MRI SENSE Courtesy Philips medicaL systems rendred by Davidoff art 92142c06b01 label.8s
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Axial Projection MRI
The axial image is intended to demonstrate ttwo important fissures; the Sylvian fissure (in red) the parieto-occipital fissure (pink) in order to demonstrate the border between the frontal and temporal lobe in the axial plane and the junction of the temporal and occipital lobe
MRI SENSE Courtesy Philips medicaL systems rendred by Davidoff art 92142c06b01 label.8s
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The axial image is intended to demonstrate ttwo important fissures; the Sylvian fissure (in red) the parieto-occipital fissure (pink) in order to demonstrate the border between the frontal and temporal lobe in the axial plane and the junction of the temporal and occipital lobe
MRI SENSE Courtesy Philips medicaL systems rendred by Davidoff art 92142c06b01 label.8s
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The axial image is intended to demonstrate ttwo important fissures; the Sylvian fissure (in red) the parieto-occipital fissure (pink) in order to demonstrate the border between the frontal and temporal lobe in the axial plane and the junction of the temporal and occipital lobe
MRI SENSE Courtesy Philips medicaL systems rendred by Davidoff art 92142c06b01 label.8s
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Axial at a Lower Level
At a lower level the parietooccipital fissure (pink) defines the anterior edge of the occipital lobe posteriorly (purple). The Sylvian fissure (bright red lines) defines the temporal lobes (light red)
Copyright 2010 all rights reserved 93914.36k.81s
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Axial at a Lower Level
At a lower level the parietooccipital fissure (pink) defines the anterior edge of the occipital lobe posteriorly (purple). The Sylvian fissure (bright red lines) defines the temporal lobes (light red)
Copyright 2010 all rights reserved 93914.36k.81s
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At a lower level the parietooccipital fissure (pink) defines the anterior edge of the occipital lobe posteriorly (purple). The Sylvian fissure (bright red lines) defines the temporal lobes (light red)
Copyright 2010 all rights reserved 93914.36k.81s
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At a lower level the parietooccipital fissure (pink) defines the anterior edge of the occipital lobe posteriorly (purple). The Sylvian fissure (bright red lines) defines the temporal lobes (light red)
Copyright 2010 all rights reserved 93914.36k.81s
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Somatosensory Region
Parietal Lobe Above the Sylvian Fissure (red) and Temporal Lobe Below
71060c07.8s brain pain pathway somotosensory cortex S 2 SII operculum parietal lobe temporal lobe frontal lobe lateral sulcus Sylvian fissure MRI T1 weighted Courtesy Ashley Davidoff MD copyright 2008
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Somatosensory Region
Parietal Lobe Above the Sylvian Fissure (red) and Temporal Lobe Below
71060c07.8s brain pain pathway somotosensory cortex S 2 SII operculum parietal lobe temporal lobe frontal lobe lateral sulcus Sylvian fissure MRI T1 weighted Courtesy Ashley Davidoff MD copyright 2008
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Parietal Lobe Above the Sylvian Fissure (red) and Temporal Lobe Below
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Somatosensory Region
Parietal Lobe Above the Sylvian Fissure (red) and Temporal Lobe Below
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83029d13.8s
This is a diagram looking at the forebrain from the side showing the anteriorly placed frontal lobe, inferiorly placed temporal lobe posteriorly placed occipital lobe and superiorly placed occipital lobe. In this view the size of the frontal lobe dominates and in fact it is the largest portion of the forebrain.
Courtesy Ashley DAvidoff MD copyright 2010 all rights reserved 83029d13.8s
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83029d13.8s
This is a diagram looking at the forebrain from the side showing the anteriorly placed frontal lobe, inferiorly placed temporal lobe posteriorly placed occipital lobe and superiorly placed occipital lobe. In this view the size of the frontal lobe dominates and in fact it is the largest portion of the forebrain.
Courtesy Ashley DAvidoff MD copyright 2010 all rights reserved 83029d13.8s
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This is a diagram looking at the forebrain from the side showing the anteriorly placed frontal lobe, inferiorly placed temporal lobe posteriorly placed occipital lobe and superiorly placed occipital lobe. In this view the size of the frontal lobe dominates and in fact it is the largest portion of the forebrain.
Courtesy Ashley DAvidoff MD copyright 2010 all rights reserved 83029d13.8s
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This is a diagram looking at the forebrain from the side showing the anteriorly placed frontal lobe, inferiorly placed temporal lobe posteriorly placed occipital lobe and superiorly placed occipital lobe. In this view the size of the frontal lobe dominates and in fact it is the largest portion of the forebrain.
Courtesy Ashley DAvidoff MD copyright 2010 all rights reserved 83029d13.8s
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https://beta.thecommonvein.net/wp-content/uploads/2023/09/83029d13.8s.jpg
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The Central Sulcus is the Border between the Frontal Lobe and the Parietal Lobe
The forebrain is divided into the frontal lobe anetriorly, separated by the central sulcus (bright green), the parietal lobe separated from the occipital lobe by the parieto-occipital fissure (pink), and the temporal lobe separated from the frontal and occip[ital lobe by the Sylvian fissure (lateral sulcus) (red). The distinction between the occipital and temporal lobe is more of a functional division than a structural division
Courtesy Ashley Davidoff MD copyright 2010 93887b03b05.8s
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The Central Sulcus is the Border between the Frontal Lobe and the Parietal Lobe
The forebrain is divided into the frontal lobe anetriorly, separated by the central sulcus (bright green), the parietal lobe separated from the occipital lobe by the parieto-occipital fissure (pink), and the temporal lobe separated from the frontal and occip[ital lobe by the Sylvian fissure (lateral sulcus) (red). The distinction between the occipital and temporal lobe is more of a functional division than a structural division
Courtesy Ashley Davidoff MD copyright 2010 93887b03b05.8s
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The forebrain is divided into the frontal lobe anetriorly, separated by the central sulcus (bright green), the parietal lobe separated from the occipital lobe by the parieto-occipital fissure (pink), and the temporal lobe separated from the frontal and occip[ital lobe by the Sylvian fissure (lateral sulcus) (red). The distinction between the occipital and temporal lobe is more of a functional division than a structural division
Courtesy Ashley Davidoff MD copyright 2010 93887b03b05.8s
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The forebrain is divided into the frontal lobe anetriorly, separated by the central sulcus (bright green), the parietal lobe separated from the occipital lobe by the parieto-occipital fissure (pink), and the temporal lobe separated from the frontal and occip[ital lobe by the Sylvian fissure (lateral sulcus) (red). The distinction between the occipital and temporal lobe is more of a functional division than a structural division
Courtesy Ashley Davidoff MD copyright 2010 93887b03b05.8s
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The Central Sulcus is the Border between the Frontal Lobe and the Parietal Lobe
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The Central Sulcus is the Border between the Frontal Lobe and the Parietal Lobe
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Conceptual Framework of the Brain
The vector of the forebrain (green) is folded at its anterior aspect as a projection of the frontal lobe and the posterior fold forms the temporal lobe. The midbrain (yellow has its axis just tipped slightly anteriorly and the hindbrain (salmon red) is tipped more posteriorly
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved
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Conceptual Framework of the Brain
The vector of the forebrain (green) is folded at its anterior aspect as a projection of the frontal lobe and the posterior fold forms the temporal lobe. The midbrain (yellow has its axis just tipped slightly anteriorly and the hindbrain (salmon red) is tipped more posteriorly
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved
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The vector of the forebrain (green) is folded at its anterior aspect as a projection of the frontal lobe and the posterior fold forms the temporal lobe. The midbrain (yellow has its axis just tipped slightly anteriorly and the hindbrain (salmon red) is tipped more posteriorly
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved
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The vector of the forebrain (green) is folded at its anterior aspect as a projection of the frontal lobe and the posterior fold forms the temporal lobe. The midbrain (yellow has its axis just tipped slightly anteriorly and the hindbrain (salmon red) is tipped more posteriorly
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved
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The Occipital Lobe (lime green)
Part of the Forebrain (Prosencephalon)
Member of the Cerebrum (Telencephalon)
Member of the Cerebral Hemispheres
The basic and simplest classification of the brain into forebrain midbrain and hindbrain is shown in this diagram and advanced to a more complex tree using the embryological and evolutionary terminologies. The forebrain consists of the cerebrum also called the prosencephalon, which contains the more advanced form of the brain and the thalamic structures which contain more basic structures. The cerebrum (telencephalon) itself consists of two cerebral hemispheres and paired basal ganglial structures. Each cerebral hemisphere will have gray and white matter distributed in the frontal parietal temporal and occipital lobe, with the basal ganglia being part of the gray matter deep in the cerebral hemispheres. The most important thalamic structures arising from the diencephalons include the thalamus itself and the hypothalamus. The midbrain (mesencepaholon) consists of the tectum tegmentum and cerebral peduncles. The hindbrain has two major branch points based on the evolutionary development. The pons and cerebellum(part of the metencephalon) are grouped and the medulla (part of the myelencephalon is the second branch.
Courtesy Ashley Davidoff MD Copyright 2010 All rights reserved 97686.8s
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The Occipital Lobe (lime green)
Part of the Forebrain (Prosencephalon)
Member of the Cerebrum (Telencephalon)
Member of the Cerebral Hemispheres
The basic and simplest classification of the brain into forebrain midbrain and hindbrain is shown in this diagram and advanced to a more complex tree using the embryological and evolutionary terminologies. The forebrain consists of the cerebrum also called the prosencephalon, which contains the more advanced form of the brain and the thalamic structures which contain more basic structures. The cerebrum (telencephalon) itself consists of two cerebral hemispheres and paired basal ganglial structures. Each cerebral hemisphere will have gray and white matter distributed in the frontal parietal temporal and occipital lobe, with the basal ganglia being part of the gray matter deep in the cerebral hemispheres. The most important thalamic structures arising from the diencephalons include the thalamus itself and the hypothalamus. The midbrain (mesencepaholon) consists of the tectum tegmentum and cerebral peduncles. The hindbrain has two major branch points based on the evolutionary development. The pons and cerebellum(part of the metencephalon) are grouped and the medulla (part of the myelencephalon is the second branch.
Courtesy Ashley Davidoff MD Copyright 2010 All rights reserved 97686.8s
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The basic and simplest classification of the brain into forebrain midbrain and hindbrain is shown in this diagram and advanced to a more complex tree using the embryological and evolutionary terminologies. The forebrain consists of the cerebrum also called the prosencephalon, which contains the more advanced form of the brain and the thalamic structures which contain more basic structures. The cerebrum (telencephalon) itself consists of two cerebral hemispheres and paired basal ganglial structures. Each cerebral hemisphere will have gray and white matter distributed in the frontal parietal temporal and occipital lobe, with the basal ganglia being part of the gray matter deep in the cerebral hemispheres. The most important thalamic structures arising from the diencephalons include the thalamus itself and the hypothalamus. The midbrain (mesencepaholon) consists of the tectum tegmentum and cerebral peduncles. The hindbrain has two major branch points based on the evolutionary development. The pons and cerebellum(part of the metencephalon) are grouped and the medulla (part of the myelencephalon is the second branch.
Courtesy Ashley Davidoff MD Copyright 2010 All rights reserved 97686.8s
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The basic and simplest classification of the brain into forebrain midbrain and hindbrain is shown in this diagram and advanced to a more complex tree using the embryological and evolutionary terminologies. The forebrain consists of the cerebrum also called the prosencephalon, which contains the more advanced form of the brain and the thalamic structures which contain more basic structures. The cerebrum (telencephalon) itself consists of two cerebral hemispheres and paired basal ganglial structures. Each cerebral hemisphere will have gray and white matter distributed in the frontal parietal temporal and occipital lobe, with the basal ganglia being part of the gray matter deep in the cerebral hemispheres. The most important thalamic structures arising from the diencephalons include the thalamus itself and the hypothalamus. The midbrain (mesencepaholon) consists of the tectum tegmentum and cerebral peduncles. The hindbrain has two major branch points based on the evolutionary development. The pons and cerebellum(part of the metencephalon) are grouped and the medulla (part of the myelencephalon is the second branch.
Courtesy Ashley Davidoff MD Copyright 2010 All rights reserved 97686.8s
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The Occipital Lobe (lime green)
Part of the Forebrain (Prosencephalon)
Member of the Cerebrum (Telencephalon)
Member of the Cerebral Hemispheres
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The Occipital Lobe (lime green)
Part of the Forebrain (Prosencephalon)
Member of the Cerebrum (Telencephalon)
Member of the Cerebral Hemispheres
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