Sagittal section of the brain
Ventricular system
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
Cerebellum
- 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 function
- 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