Sagittal section of the brain

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Ventricular system

Pasted image 20250209195825.png CSF flow: CSF production: produced by choroid plexuses in the lateral, third, and fourth ventricles by filtration of plasma → lateral ventricles → third ventricle (via interventricular foramina) → fourth ventricle (via cerebral aqueduct) → diffusion and active transfer into the subarachnoid space (via foramina of Luschka and Magendie) → reabsorption in the arachnoid granulations (a group of projections of the arachnoid mater into the dural sinuses) → drainage into the dural venous sinuses → internal jugular veins, ultimately heart highresdefault_L18129.jpg

Cerebellum


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  • Function
    • Control of balance and ocular movements
    • Planning of movements that are about to occur
    • Coordination of complex and sequential movements
    • Maintenance of muscle tone

Limbic system


  • Function: involved in emotional and behavioral responses, motivation, memory, olfaction, and autonomic nervous system functionPasted image 20250409113731.pngPasted image 20250409113828.png
  • Components
    • Areas of the cerebral cortex: hippocampal formation (hippocampus, dentate gyrus, entorhinal cortex), cingulate gyrus
    • Nuclei: mammillary bodies, amygdala, anterior thalamic nuclei
    • Nerve fiber tracts
      • Cerebral fornix: C-shaped nerve fiber bundle that represents the major output tract of the hippocampus
      • Cingulum: nerve fiber bundle connecting cingulate gyrus and entorhinal cortex
      • Mammillothalamic tract
      • Striae terminalis