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Hall gave an admirably clear and interesting account of his experiments and conclusions in a paper before the Royal Society, "On the Reflex Functions of the Medulla Oblongata and the Medulla Spinalis," from which, as published in the Transactions of the society for 1833, we may quote at some length: "In the entire animal, sensation and voluntary motion, functions of the cerebrum, combine with the functions of the medulla oblongata and medulla spinalis, and may therefore render it difficult or impossible to determine those which are peculiar to each; if, in an animal deprived of the brain, the spinal marrow or the nerves supplying the muscles be stimulated, those muscles, whether voluntary or respiratory, are equally thrown into contraction, and, it may be added, equally in the complete and in the mutilated animal; and, in the case of the nerves, equally in limbs connected with and detached from the spinal marrow.
One afternoon at six, when Dulcie was sticking her hat-pin within an eighth of an inch of her medulla oblongata, she said to her chum, Sadie the girl that waits on you with her left side: "Say, Sade, I made a date for dinner this evening with Piggy." "You never did!" exclaimed Sadie admiringly. "Well, ain't you the lucky one? Piggy's an awful swell; and he always takes a girl to swell places.
Uncertainty existing as to the nature of the proximate cause of this disease, its remote causes must necessarily be referred to with indecision. Assuming however the state just mentioned as the proximate cause, it may be concluded that this may be the result of injuries of the medulla itself, or of the theca helping to form the canal in which it is inclosed.
The medulla oblongata, situated at the base of the brain where it joins the spinal cord, contains those brain centers that control the purely vegetative, vital functions: the circulation of the blood, the respiration, regulation of animal heat, etc.
Ovary and adrenal medulla and posterior pituitary and thyroid predominance constitute the feminine formula. Testis and adrenal cortex and anterior pituitary predominance comprise the masculine endocrine directorate. As in so many other aspects, the facts about the various influences exerted by the endocrine glands upon the reproductive system are complicated and disjointed.
The corresponding Old English terms were forgotten during the age of illiteracy, and when, generations later, the speaker of English came again to deal with such subjects, he had to do like Layamon, when he knew no longer tungol-croeft, and could refer to it only as 'the craft ihote astronomie in other kunnes speche. Also Medulla Grammaticae, or usually Grammatice.
The following are the principal points presented: In operations under inhalation anesthesia the nerve impulses from the trauma reach every part of the brain the cerebrum that is apparently anesthetized as well as the medulla that is known to remain awake the proof being the PHYSIOLOGIC exhaustion of and the PATHOLOGIC change in the nerve-cells.
The head had to be balanced in such a way that through the pivot or joint on which it rests a safe passageway could be secured for one of the most delicate and most important of all the parts or structures of the human machine. We have never found a good English name for this structure, so we use its clumsy Latin one Medulla oblongata or medulla for short.
A diseased state of the medulla spinalis, in that part which is contained in the canal, formed by the superior cervical vertebræ, and extending, as the disease proceeds, to the medulla oblongata.
It seems as if, once successful impregnation has been achieved, the feminine organism adrenalizes itself, makes itself more masculine and less feminine, inhibiting the posterior pituitary and the adrenal medulla, as well as the ovaries. Besides, the corpus luteum stimulates the thyroid to prepare for the heavy demands to be made upon it during pregnancy.
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