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The brain and arterial supply

The brain and arterial supply

Country/Region china
Company Lianying Company
Categories Constant Voltage Power Supply
Update 2015-07-23 16:02:03
ICP License Issued by the Chinese Ministry
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The brain and arterial supply
Model:J3307-1Spec(L×W×H/cm) : 16×13×17

A. External features of the brain.

1.Cerebral hemisphere. On its dossolateral surface the central sulcus, and lateral and parieto-occipital fissure, the frontal, parietal, parietal, temporal and occipital lobes are shown; On its median and basal surfaces the corpus callosum(cutting surface),the parietoocipital and calcarine fissures, the olfactory bulb and tract are shown.

2.Brain stem. On its dorsal aspect the thalamus, pulvinar corpora quadrigemina and the rhomboid fossa are shown; On its ventral side, teh optic chiasma, mammilary bodies, crura pedunculi and pons etc. are depicted.

3.Cerebellum.Special features of cerebellar hemispheres and vermis are marked.

B. The arterial supply of the brain

1. Sources:2 vertebral, 2internal carotid arteries.

2. Right and left vertebral arteries passing forwards on the ventral surface of medulla oblongata, unite at lower 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.

3. Arteria supply of the cerebellum and cerebrum.

1) The cerebellum supplied by 3pairs of

a. Post inferior cerebellar arteries arising from verterbral arteries.

b. Anterior inferior cerebellar arteries originating from basilar artery at lower border of pons.

c. Superior cerebellar arteries arising from basilar artery at superior border of pons.

2) The cerebrum, supplied mainly by 3 pairs of cerebral arteries.

a. The posterior cerebral arteries, terminal branches of the basilar artery.

b. The middle cerebral arteries to stem of lateral fissure, supplying main part of dorsal lateral surface of brain.

c. The anterior cerebral arteries are terminal branches of internal carotid arteries to medial surface of the cerebral hemisphere. (The vessel passing along the groove between dorsal surface of thalamus and caudate nucleus is a vein, .... vena terminalis).

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