Describes the lateral ventricles, the largest cavities of the brain, one in each hemisphere, and their C-shaped structure. It goes through the anterior, body, posterior and inferior horns with the walls, roof and floor of each, then the interventricular foramen to the third ventricle, the septum pellucidum, the choroid plexus and the roles of CSF production and circulation.
Topic 26 of 34 in the MU Sofia syllabus for Anatomy (CNS) (Medicine, Year 2). The free AceMed note covers it in 4 sections, about 141 words (1 min of reading), with 10 flashcards.
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LATERAL VENTRICLE
Structure:
Components:
Functions:
LATERAL VENTRICLE
Lateral ventricle is the largest ventricle within the brain.
There are 2 lateral ventricles in the brain, one in each hemisphere.
Structure:
Each lateral ventricle has a C-shaped structure with:
1. Anterior horn: Extends into the frontal lobe.
about 3 cm, pyramid-shaped
lateral wall formed by: head of caudate nucleus
Roof: corpus callosum
Medial wall: Septum pellucidum.
2. Body: lies within the parietal lobe.
Floor: the thalamus & tail of caudate nucleus.
3. Posterior horn: extends into the occipital lobe.
4. Inferior horn: extends into the temporal lobe
It connects the third ventricle through the interventricular foramen. (= Monro foramin)
The two lateral ventricles separated by the septum Pellucidum.
thin sheet spans btw. the corpus callosum & fornix in the midline.
Components:
1. Choroid plexus - a network of blood vessels in the ventricles that produces CSF.
Functions:
1. CSF Production.
2. CSF Circulation.
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