[Flash] Cấu tạo não - Brain Sections - eduMedia

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Summary

This animation presents the anatomy of the encephalon using various sections.
On the diagram at upper left, click on the plane representing the desired section.
Click on the brain itself to return to the whole encephalon.

Learning goals

• To learn the anatomy of the encephalon and spinal cord.
• To compare the locations of gray matter and white matter in the brain and spinal cord.

Learn more

Motor function is controlled by the nervous system.

This system is made up of  the Central Nervous System (CNS) and the Peripheral Nervous System (PNS). The CNS is made up of the encephalon and the spinal cord.

The encephalon is divided into different, anatomically distinct, structures:

1. The cerebrum, comprising the two cerebral hemispheres, the surface of which is not smooth due to the presence of numerous convolutions. The cerebral hemispheres are linked by the corpus callosum. The exterior of the brain (the cerebral cortex) is made up of gray matter. Beneath the cortex, one finds white matter within which one finds some masses of gray matter, made up of a central gray nucleus (the caudate, lenticular and sub-hypothalamic nuclei). The brain contains two other anatomically important structures: the hypothalamus and the pituitary gland.
2. The cerebellum, which  is made up of the two cerebellar hemispheres.
3. The Rachidian Bulb, making up the lower portion of the encephalon, where white matter is found at the periphery and gray matter at the center.

The cerebellum and the Rachidian Bulb make up the brainstem.  The encephalon contains cavities called cerebral ventricles:

• Two lateral ventricles (1^st and 2^nd ventricles).
• A third ventricle between the two cerebral hemispheres.
• A fourth ventricle in the brainstem.

These cavities are connected to one another and contain cerebrospinal fluid, or cephalorachidian fluid.

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