Overview of the Limbic System: Functions, Structures and Components

by Craig Canby, PhD

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    Welcome to this presentation on the limbic system. I think you’re going to find this to be a very fascinating system. This system is composed of various anatomic brain structures with multiple interconnections that serve to allow the species to survive, to reproduce. This system is also going to drive various behaviors. Let’s begin. Our first stop here is to consider the functional aspects of the limbic system. We’re seeing some of the components of the limbic system here in the illustration. We’ll dive into that detail here very, very shortly. One of the functional considerations is that the limbic system will drive various emotions. This can run from anger to pleasure, et cetera. As we'll see later in the presentation, the limbic system is also involved in memory. It helps us to maintain our attention to our surroundings and to our tasks. It drives our feeding behavior so that we have enough caloric intake to survive. Then lastly, it also drives mating behavior to ensure the survival of the species. The components of the limbic lobe are interesting in where they’re located within the brain and the connections that they make. The limbic system is probably not a true anatomic lobe. But nonetheless, there is a classical definition of the anatomic components that do define the limbic lobe but there may be some variation from this classical definition. One of the first components to identify is shown here in green. This is the cingulate gyrus. This is on the medial aspect of each cerebral hemisphere and it resides just superior to the corpus callosum. Another component of the limbic system or the limbic lobe is in this area. This is the uncus and olfactory cortex. We’ll talk about the interconnectedness of this cortex with olfaction. Another structure is the...

    About the Lecture

    The lecture Overview of the Limbic System: Functions, Structures and Components by Craig Canby, PhD is from the course Limbic System. It contains the following chapters:

    • Components of the Limbic System
    • Olfaction Cortex
    • Hippocampus
    • Amygdala

    Included Quiz Questions

    1. Movement
    2. Emotion
    3. Mating behavior
    4. Feeding behavior
    5. Memory
    1. Globus pallidus
    2. Amygdala
    3. Fornix
    4. Cingulate gyrus
    5. Hippocampus
    1. Amygdala
    2. Hippocampus
    3. Mamillary body
    4. Cingulate gyrus
    5. Fornix
    1. Mammillary body
    2. Dentate gyrus
    3. Prefrontal cortex
    4. Cingulate gyrus
    5. Amygdala

    Author of lecture Overview of the Limbic System: Functions, Structures and Components

     Craig Canby, PhD

    Craig Canby, PhD

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