1 / 18

Anatomy of the Central Nervous System: Forebrain

Anatomy of the Central Nervous System: Forebrain. Lecture 5. Telencephalon - Cortex. Gray Matter Somas and Dendrites Neocortex - 6 layers Sensory input ---> layer IV Motor output ---> layer V Paleocortex - 2 or 3 layers ~. Telencephalon - Fiber Systems.

Download Presentation

Anatomy of the Central Nervous System: Forebrain

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Anatomy of theCentral Nervous System:Forebrain Lecture 5

  2. Telencephalon - Cortex • Gray Matter • Somas and Dendrites • Neocortex - 6 layers • Sensory input ---> layer IV • Motor output ---> layer V • Paleocortex - 2 or 3 layers ~

  3. Telencephalon - Fiber Systems • White Matter - myelinated axons • 3 types of fiber systems • Commissural • Association • Projection ~

  4. Commissural Fibers • Interconnect homologous structures in the two hemispheres • Corpus Callosum • Anterior and Posterior • Hippocampal ~

  5. Anterior Anterior

  6. Association & Projection Fibers • Association Fibers • interconnect cortical areas within each hemisphere • Projection Fibers • all other fiber systems • Fornix • Corticospinal tract • Mammillothalamic tract • Naming convention ~

  7. Hemispheres Left Right Association Commissural Projection

  8. The Limbic System • Emotion • Learning & Memory • Structures • Thalamus • Hypothalamus • Hippocampus • Cingulate gyrus • Amygdala • Fornix ~

  9. Limbic System Cingulate gyrus Hippocampus Fornix Thalamus Hypothalamus Amygdala

  10. Striatum Lenticular Nucleus Basal Ganglia • Extrapyramidal Motor System • Caudate • Putamen • Globus Pallidus • Claustrum • Amygdala • no motor function ~

  11. Globus pallidus Putamen Caudate Amygdala

  12. Claustrum

  13. Diencephalon • Surrounds third ventricle • Thalamus • sensory and motor relay nuclei • Hypothalamus • motivation & emotion ~

  14. Thalamus • Lateral Geniculate Nuclei - LGN • vision • Medial Geniculate Nuclei - MGN • audition • Ventroposterior Nuclei - VPL & VPM • somatosensation • Massa Intermedia - crosses midline ~

  15. Hypothalamus • Control of behaviors critical to survival • Feeding • Fighting • Fleeing • Mating • Controls the pituitary gland ~

  16. Thalamus

  17. Diencephalon: thalamus Massa Intermedia MGN LGN

  18. Pituitary Stalk Diencephalon Hypothalamus

More Related