(Kirkes') Handbook of physiology

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Blakiston, 1905 - Biochemistry - 901 pages
 

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Page 313 - ... variation of size, collapsing in the passive state of the organ, but, for erection, capable of an amount of dilatation which exceeds beyond comparison that of the arteries and veins which convey the blood to and from them. The strong fibrous tissue lying in the intervals of the venous...
Page 773 - It lies between the posterior surface of the cornea and the anterior surface of the iris or, in the region of the pupil, the anterior surface of the lens.
Page 299 - By these methods it has been determined that all the vaso-constrictor nerves of the body leave the spinal cord by the anterior roots of the spinal nerves from the first dorsal to the third or fourth lumbar inclusive.
Page 365 - Sneezing. — The same remarks that apply to coughing, are almost exactly applicable to the act of sneezing; but in this instance the blast of air, on escaping from the lungs, is directed, by an instinctive contraction of the pillars of the fauces and descent of the soft palate, chiefly through the nose, and any offending matter is thence expelled.
Page 207 - ... 2, a narrow portion of the wall of the auricle and ventricle preserved round the auriculo-ventricular orifice ; 3, 3', the cut surface of the walls of the ventricle, seen to become very much thinner towards 3...
Page 356 - ... being in close contact with the inner surface of the other, and obliged to follow it in all its movements. Respiratory Rhythm. — The acts of expansion and contraction of the chest, take up, under ordinary circumstances, a nearly equal time. The act of inspiring air, however, especially in women and children, is a little shorter than that of expelling it, and there is commonly a very slight pause between the end of expiration and the beginning of the next inspiration. The respiratory rhythm...
Page 430 - To our eyes it is bounded by red at the one end and violet at the other, the edge being sharply marked at the red end, but less abruptly at the violet. But a ray of light contains besides the rays visible to our eyes others which...
Page 133 - C causes it to move along the rails to the right or left according to the direction of the current.
Page 768 - ... the left side the light spot indicates the colliculus or eminence at the entrance of the optic nerve, from the centre of which the arteria centralis is seen spreading; its branches into the retina, leaving the part occupied by the macula comparatively free.
Page 88 - ... the peripheral nervous system. The central nervous system consists of the brain and spinal cord. The peripheral nervous system consists of the cranial nerves, the spinal nerves, and the autonomic nervous system.

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