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Pneumonia. An inflammation affecting the air cells of the lungs. Any substance, which, when applied externally, or taken into the stomach or the blood, works such a change in the animal economy as to produce disease or death. Pons Varolii. Bridge of Varolius. The white fibers which form a bridge connecting the different parts of the brain, first described by Varolius.
If the heart is slowed as a whole, the trouble might be due to diseased arteries or pressure from a growth, a gumma, perhaps, or other brain tumor in the region of the pons Varolii or medulla oblongata; or a hemorrhage into the fourth ventricle, causing pressure, could be the cause. The treatment of true Stokes-Adams disease is unsuccessful.
The following are recent examples: Kustermann reports a case of acute myelitis in which there was profuse perspiration above the level of the girdle-sensation and none at all below. Sharkey reports a case of tumor of the pons varolii and left crus cerebri, in which for months there was excessive generalized perspiration; it finally disappeared without treatment.
*The Pons*, or pons Varolii, named from its supposed resemblance to a bridge, is situated in front of the cerebellum, and is readily recognized as a circular expansion which extends forward from that body. It consists largely of bands of nerve fibers, between which are several small masses of cell-bodies. The fibers connect with different parts of the cerebellum and with parts above. C. Cerebrum.
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