Human Anatomy and Histology · MU Plovdiv

38. The lateral ventricle. Ventricular system.

Inside: 4 sections · 3 labelled pictures · 10 flashcards · 1 min

Topic 79 of 212 in the MU Plovdiv syllabus for Human Anatomy and Histology (Medicine, Years 1 and 2). The free AceMed note covers it in 4 sections, about 134 words (1 min of reading), with 10 flashcards.

In this note

  1. LATERAL VENTRICLE
  2. Structure:
  3. Components:
  4. 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.
  1. Body: lies within the parietal lobe.
  • Floor: the thalamus & tail of caudate nucleus.
  1. Posterior horn: extends into the occipital lobe.
  2. 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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