. Elements of human physiology. Physiology. Diagram of semieirculav canals to show their position in three planes at right angles to one another. It will be seen that the two hori- zontal canals lie in the same plane (e), and that the superior vertical of one side (a) is in the same plane as the posterior vertical (p) of the other side (from Esvald). an animal or man be placed on a turntable and rotated, his first tendency will be to turn his head and e^^es in the opposite direction to that of rotation. If the rotation be continued, the endolymph gradually takes up the movement of the surround
. Elements of human physiology. Physiology. Diagram of semieirculav canals to show their position in three planes at right angles to one another. It will be seen that the two hori- zontal canals lie in the same plane (e), and that the superior vertical of one side (a) is in the same plane as the posterior vertical (p) of the other side (from Esvald). an animal or man be placed on a turntable and rotated, his first tendency will be to turn his head and e^^es in the opposite direction to that of rotation. If the rotation be continued, the endolymph gradually takes up the movement of the surround- ing parts of the head, and if the eyes be closed, no movement of head or eyes is observed. If now the rotation be stopped, the endolymph will tend to go on moving, and the effect will be the same as if a movement of rotation were suddenly begun in the opposite direction. Head and eyes will now be turned, without any voluntary impulse, in the direction of the previous rotation and in consciousness there will be an actual sensation of rotation in the opposite direction. This sensation is in opposition to the sensations derived from other Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Starling, Ernest Henry, 1866-1927. Chicago : W. T. Keener
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