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The Ephemerides records a paroxysm of continual sneezing lasting thirty days. Bonet, Lancisi, Fabricius Hildanus, and other older observers speak of sneezing to death. Morgagni mentions death from congestion of the vasa cerebri caused by sneezing. The Ephemerides records an instance of prolonged sneezing which was distinctly hereditary.
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.
It is divided into two hemispheres by the falx cerebri, a partition which follows the middle line of the skull. Each hemisphere contains one organ pertaining to each faculty of the mind.
There is a line in the hand which he calls the linea jecoraria, and the triangle formed by this and the linea vitæ and the linea cerebri, rules the disposition of the subject, due consideration being given to the acuteness or obtuseness of the angles of this triangle.
Foot records a case of amyelia, or absence of the spinal cord, in a fetus with hernia cerebri and complete fissure of the spinal column. Nicoll and Arnold describe an anencephalous fetus with absence of spinal marrow; and Smith also records the birth of an amyelitic fetus. In some persons there are exaggerated curvatures of the spine.
The circulation is, in such a case, maintained through other channels, such as branches from the superior intercostal arteries which enter the anterior spinal artery. While total anæmia of the brain instantaneously abolishes consciousness, partial anæmia is found to raise the excitability of the cortex cerebri.
Occasionally a deficiency in the osseous material of the cranium or an abnormal dilatation of the fontanelles gives rise to a hernia of the meninges, which, if accompanied by cerebrospinal fluid in any quantity, causes a large and peculiarly shaped tumor called meningocele. If there is a protrusion of brain-substance itself, a condition known as hernia cerebri results.
Many formula for love-potions may be found in the work of Albertus Magnus, who, among other things, particularly recommends "the brains of a partridge calcined into powder and swallowed in red wine," a remedy which is also much insisted upon by Platina, who, in praising the flesh of the partridge, says, "Perdicis caro bene ac facile concoquitur, multum in se nutrimenti habet, cerebri vim auget, genituram facilitat ac demortuam Venerem excitat."
Besides the small amount of blood pressure-raising substance secreted by the hypophysis cerebri. it has not been shown that any other gland of the body furnishes vasopressor substance except the suprarenals. Atropin: When there is great cardiac weakness, atropin may be used to advantage. The dose is from 1/200 to 1/150 grain hypodermically, not repeated in many hours.
The upper two of these bodies are connected with the eyes; the lower two appear to have some connection with the organs of hearing. On the front and under surface, the midbrain separates slightly as if to form two pillars, which are called the crura cerebri, or cerebral peduncles. These contain the great bundles of nerve fibers that connect the cerebrum with the parts of the nervous system below.
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