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As the ovaries are strictly analogous to the testes, it was surmised that ovarian extract might prove a drug equally valuable with testicular products. As a matter of fact, ovarian extract, in the form of ovarin, etc., would seem to have proved beneficial in various disorders, more especially in anæmia and in troubles due to the artificial menopause.
This seems so very improbable that it suggests a doubt whether the same investigator was not mistaken with regard to the results of his experiments in transplanting gonads in Moths. Smith and Schuster conclude that the normal development of the thumb-pad depends on the presence of normal testes, but that there is no sufficient evidence that the effect is due to a hormone derived from the testis.
In the latter instances, all afflux of nutriment and heat being prevented by the ligature, we see the testes and large fleshy tumours dwindle, die, and finally fall off. Ligatures of medium tightness I regard as those which compress a limb firmly all round, but short of pain, and in such a way as still suffers a certain degree of pulsation to be felt in the artery beyond them.
The work of Steinach, a Viennese investigator, has contributed most to the elucidation of the nonarterial factor in senility. No one has asserted more loudly the importance of the interstitial cells that fill in the spaces between the tubules of the testes in the male, and the follicles of the ovary in females.
Perhaps, as applied to the period below puberty, it would be more exact to say "pseudo-sexuality." Matsumato has lately pointed out the significance of the fact that the interstitial testicular tissue, essential to the hormonic function of the testes, only becomes active at puberty.
But the vessels which convey the blood to the testes, from which the seed is made, are the arteriae spermaticae and there are two of them also. There are likewise two veins, which carry off the remaining blood, and which are called venae spermaticae. Urinary vesicle. A word of Advice to both Sexes, consisting of several Directions with regard to Copulation.
But try as I might I could not make him understand. Perhaps he enjoys doing penance in his wheel chair more than he would enjoy health and life. Tissue Losses at Death By Starvation Fat 97% Muscles 31 Blood 27 Liver 54 Spleen 67 Pancreas 17 Skin 21 Intestines 18 Kidneys 26 Lungs 18 Testes 40 Heart 3 Brain and Spinal Cord 3 Nerves 3 Bone 14
The epidermis is therefore growing while the spermatogenesis is taking place. In August and September the epidermic papillae begin to be obvious, and from this time till February a continuous increase in the papillae and their pigmentation occur. Geoffrey Smith argues that the development of this somatic character occurs while the testes are inactive and unchanged.
I found an oval body of dark, dull brown colour loose among the intestines: this was evidently the left testis which was separated from its natural attachment and lost in the abdomen at the time of the operation. I examined the natural sites of the testes: on the right side there was a small testis of considerable size, about half an inch in diameter.
The larger Marsupials like the kangaroos are eminently saltatory, and the others are active in locomotion. The aquatic Mammals Sirenia and Cetacea have no scrotum, the testes being abdominal.
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