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Anterior and Posterior Arteries of the Cerebral Cortex

by Craig Canby, PhD
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    Taking a look at our arteries that supply the cerebrum specifically, we’re going to take a look here on this medial view the course of the anterior cerebral artery. So again, this is going to travel on the medial side of the cerebral cortex as an anterior course passing anterior to your corpus callosum and then circles back, if you will and winds back over the corpus callosum. Then it will send some branches over the superior aspect of the cerebral cortex that it supplies. The posterior cerebral artery is shown in through here as a much more posterior course as you would imagine. You can see it branching. You can see it supplying the more posterior aspects of the cerebrum. Now, I want you to focus on each one of these arteries in a little greater detail. What we want to do is to understand the actual distribution of first the anterior cerebral artery and then the posterior cerebral artery. So, the area in blue on this lateral view represents the territories supplied by the anterior cerebral artery. So those areas would include the medial, frontal, and parietal lobes, so more on the medial side of this view. The anterior cerebral artery also supplies the anterior limb of the internal capsule. It also will supply most of the corpus callosum, the structure that connects the cerebral hemispheres to one another. Here we see on the medial view in blue again, shaded in blue the distribution of the anterior cerebral artery. All the medial side of the frontal lobe, all the medial side of the parietal lobe essentially is being supplied here. Now, we want to take a look at the middle cerebral artery and the territory that it supplies. That’s the area that’s shown in through here. The territory...

    About the Lecture

    The lecture Anterior and Posterior Arteries of the Cerebral Cortex by Craig Canby, PhD is from the course Cerebral Cortex. It contains the following chapters:

    • Anterior and Posterior Arteries
    • Arterial Supply of the Homunculus

    Included Quiz Questions

    1. Motor and sensory cortex of upper limb and face
    2. Medial frontal lobe
    3. Major part of corpus callosum
    4. Anterior limb of internal capsule
    5. Parietal lobe
    1. Middle cerebral artery
    2. Anterior cerebral artery
    3. Medial cerebral artery
    4. Lateral cerebral artery
    5. Posterior cerebral artery
    1. Genu of the internal capsule is supplied by the middle cerebral artery.
    2. Anterior limb of the internal capsule is supplied by middle cerebral artery.
    3. Anterior limb of the internal capsule is supplied by posterior cerebral artery.
    4. Genu of the internal capsule is supplied by anterior cerebral artery.
    5. Posterior limb of the internal capsule is supplied by posterior cerebral artery.
    1. Anterior cerebral artery
    2. Middle cerebral artery
    3. Basilar artery
    4. Vertebral artery
    5. Posterior cerebral artery
    1. It is most susceptible to infarction.
    2. It is least susceptible to infarction.
    3. It is most susceptible to intracranial bleed.
    4. It is supplied by a single artery.
    5. It is highly perfused area.

    Author of lecture Anterior and Posterior Arteries of the Cerebral Cortex

     Craig Canby, PhD

    Craig Canby, PhD


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