Bell, Charles: The anatomy of the brain: explained in a series of engravings (London, 1802)

45

3. The Tentorium, which is seen to stretch over the Cerebellum,

and to support the posterior lobes of the Brain.

4. The Pi a Mater continued in betwixt the Cerebrum and Cere-

bellum, and which connects the Nates and Testes to the Cere-
bellum.

5. The Nates, 1

tm tp f viz. the TlJBERCULA QUADRIGEMINA.

6. The Testes, J

"We have to observe, that these eminences are not within the cavi-
ties of the Brain ; but that they may be seen by separating the
Brain and Cerebellum from behind.

7. The origin of the fourth Nerve of the Brain, or Troch-

lears.

8. Section of the Tuber Annulare, or Pons Varolii, where the

appearance of the striae, or filaments, is accurately represented w.

9. The Crura Cerebelli, and Arbor Vitje; the Crura Cerebelli

being formed by the union of the branches of the internal me-
dullary part of the Cerebellum, which branching is called the
Arbor Vit;e.

10. The Medulla Oblongata, being the upper part of the spinal

marrow, as formed by the union of the Cerebrum and Cere-
bellum, and enumerated commonly as one of the three great
divisions of the Brain.
* The Inferior Lobulus of the Cerebellum.

11. The Basilar Artery, which is formed by the union of the

Vertebral Arteries 11.

10 << Diversis filamentis intersectae," Tarin.—" Coupe de protuberance annulaire,
u ou est une melange de substance de diverse nature." Vicq. cTJzyr.

11 See Engravings of the Arteries, PI. V. 5. P. IV. 6, 7.