ما يقوله الناس - كتابة مراجعة
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acid gas albumen animal animalcules aorta appear artery become bladder blastema blood bone branches calcareous calculi canal cancer capsule carbonic acid carbonic acid gas cavity cells cellular cilia cloaca colour composed consists contained corpuscles diameter dilated disease distinct duct enchondroma epithelium exist experiments expired air external extremity fibres fibrin fibrous fluid frequently genera genus gland growth inches incisors interior internal intestine kidney less liver lobe lobules lungs Malpighian bodies mass matter maxillary membrane ment microscope molars mouth mucous mucous membrane muscles muscular nerve observed oesophagus organs orifice oxygen parietal penis phosphate polypes portion posterior prostate pulse quantity reptiles respiration respiratory ribs Rotifer Rotifera saliva scapula secretion seen side situated species stomach structure substance surface teeth tendon termination texture tion tissue transverse tubercle tubes tumour ulna upper ureter urethra urine vascular veins venous vertebra vesicles vessels
الصفحة 397 - ... state on the general surface of our bodies, and to that of many other permanently rudimental organs, such as the mammary glands of the male and others. For these rudimental organs certainly do not serve, in a lower degree, the same purposes as are served by the homologous parts which are completely developed in other species, or in the other sex. To say they are useless, is contrary to all we know of the absolute perfection and all-pervading purpose of creation ; to say they exist merely for...
الصفحة 414 - During the tumult, some neighbours came in and separated the men. While in this state of strong excitement, the mother took up her child from the cradle, where it lay playing, and in the most perfect health, never having had a moment's illness. She gave it the breast, and in so doing sealed its fate. In a few minutes the infant left off sucking, became restless, panted, and sank dead on its mother's bosom.
الصفحة 225 - It would indeed be difficult to conceive a disposition of parts more calculated to favour the escape of water from the blood, than that of the Malpighian body. A large artery breaks up in a very direct manner into a number of minute branches, each of which suddenly opens into an assemblage of vessels of far greater aggregate capacity than itself, and from which there is but. one narrow exit. Hence must arise a very abrupt retardation in the velocity of the current of blood.
الصفحة 413 - A carpenter fell into a quarrel with a soldier billeted in his house, and was set-upon by the latter with his drawn sword. The wife of the carpenter at first trembled from fear and terror, and then suddenly threw herself between the combatants, wrested the sword from the soldier's hand, broke it in pieces, and threw it away.
الصفحة 253 - ... along the expanded opening unbroken, and it is not until it has reached the gullet, and the closed mouth prevents any escape of the nutritious matter, that the shell is exposed to instruments adapted for its perforation. These instruments consist of the inferior spinous processes of the seven or eight posterior cervical vertebrae, the extremities of which are capped by a layer of hard cement, and penetrate the dorsal parietes of the oesophagus; they may be readily seen, even in very young subjects,...
الصفحة 253 - In the interspaces of the fixed teeth in both these bones, the places of attachment of the shed teeth are always visible ; so that the dental formula, if it included the vacated with the occupied sockets, would express a greater number of teeth than are ever in place and use at the same time.
الصفحة 57 - When the spicula are examined through the microscope after this exposure to heat, we distinctly perceive a shut cavity within them, extending from the one point to the other ; and on the inflated part of each spiculum we observe a ragged opening, as if a portion had been driven out by the expansion of some contained fluid. In those spicula which had suffered little change of form by their incandescence, I have never failed to observe the same cavity within, extending from one end to the other, and...
الصفحة 134 - John Hunter similarly regarded it, after independent examinations of the organ, stating that " a small portion of it (the prostate) which lies behind the very beginning of the urethra, swells forward like a point, as it were, into the bladder, acting like a valve, to the mouth of the urethra.
الصفحة 58 - ... around. The beauty and novelty of such a scene in the animal kingdom long arrested my attention ; but after twenty-five minutes of constant observation, I was obliged to withdraw my eye from fatigue, without having seen the torrent for one instant change its direction, or diminish...
الصفحة 414 - No. 516), that having removed a small tumour from behind the ear of a mother, all went well until she fell into a violent passion ; and the child, being suckled soon afterwards, died in convulsions. He was sent- for hastily to see another child in convulsions, after taking the breast of a nurse who had just been severely reprimanded ; and he was informed by Sir Richard Croft, that he had seen many similar instances.