Lecture on Limbic System Anatomy: Amygdala, Hippocampus & Papez Circuit | MBBS | TSMC

In this neuroanatomy lecture, Dr. Santanu Chakraborty provides a deep dive into the Limbic System—the brain's emotional and memory hub. This session details the evolutionary history of limbic structures, the functional anatomy of the Amygdaloid nuclear complex and Hippocampal formation, and the mechanism of the Papez circuit. This lecture is essential for MBBS students looking to master the structural and functional integration of the limbic system for university examinations. [Key Topics Covered] Evolutionary Perspective: Transition from the "smell brain" (rhinencephalon) to the mammalian limbic system. Amygdala Anatomy: Location, connections (Stria terminalis), and function (emotional processing/aggression). Hippocampal Formation: Components including the Dentate Gyrus, Subiculum, and Cornu Ammonis (CA1-CA3). Papez Circuit: James Papez’s speculative theory on how emotion is not localized but flows through a neural loop. Clinical Relevance: Temporal lobe epilepsy, Alzheimer’s disease (neurofibrillary tangles in the subiculum), and behavioral impacts. [Timestamps for Exam Revision] [00:00] Introduction to Limbic System & Facial Gestural Reading [02:28] Evolutionary History: The "Smell Brain" (Rhinencephalon) [08:46] Development of Allocortex & Limbic Structures [12:00] Subiculum: Transitions & Clinical Pathology [22:37] Components of the Limbic System (Enummeration) [23:46] Fornix Pathway: Detailed Mapping [30:33] Papez Circuit: The Loop of Emotion & Memory [43:12] Amygdala: Anatomy & Functional Connections [46:24] Stimulation & Ablation: Behavioral Impact (Klüver-Bucy) TRIPURA SANTINIKETAN MEDICAL COLLEGE & HOSPITAL Real time Classroom Demonstration/ ANATOMY LECTURE ON - AMYGDALOID NUCLEAR COMPLEX AND HIPPOCAMPAL FORMATION , BY- DR. SANTANU CHAKRABORTY (MBBS Batch: 2025-26) Conducted on: 01-07-26 #mbbsclass #medical #class #education #mbbs #tsmc #students #everyoneシ゚viralシviralシfypシ゚viralシalシ #flowers #tripurasantiniketanmedicalcollege