This model is designed as an aid for teaching physiology and hygiene courses. It facilitates the students to get a correct understanding of the external features of the brain and its arterial supply as a whole, as well as the relations between their component portions.
- External features of the brain
- Cerebral hemisphere. On its dossolateral surface the central sulcus, lateral and parieto-occipital fissures, the frontal, parieta, temporal and occipital lobes are shown. On its median and basal surfaces the corpus callosun (cutting surface), the parieto-occipital and calcarine fissures, the olfactory bulb and tract are shown.
- Brain stem. On its dorsal aspect the thalamus, pulvinar corpora quadrigemina and the rhomboid fossa are shown. On its ventral side, the optic chiasma, mammilary bodies, crura pedunculi and pons etc. are depicted.
- Cerebellum. Special features of cerebellar hemispheres and vermis are marked.
- The arterial supply of the brain
- Sources: 2 vertebral, 2 internal carotid arteries.
- Right and left vertebraI arteries passing forwards on the ventral surface of medulla oblongate, unite at lower border of pons to form the unpaired basilar artery. At upper-border of pons, balilar artery after giving off a pair of superior cerebellar arteries divides into posterior cerebral arteries. Posterior cerebral connected with internal right and left carotid arteries by post communicating
branches. The internal carotid gives off the middle and anterior cerebral arteries.