 If the acid be weak, the capillary contraction occurs more slowly and gradually. If it be very concentrated, the phenomenon is not observed, or it passes so quickly into complete stoppage of blood, as to be imperceptible. Although we cannot see these...  Edinburgh Medical and Surgical Journal - Seite 411844Vollansicht - Über dieses Buch
 | 1850 - 798 Seiten
...of acetic acid to the web of the frog's foot. If the acid be weak, the capillary contraction occurs more slowly and gradually. If it be very concentrated,...the majority of instances, also, this paleness is sncceeded by iuXXI.— 2 ] creased redness, the same result as follows from direct experiment on the... | |
 | John Hughes Bennett - 1858 - 1002 Seiten
...of ace-tic acid to the web of the frog's foot. If the acid be weak, the capillary contraction occurs more slowly and gradually. If it be very concentrated,...foot, constituting the second step of the process. In other cases, the redness may arise primarily from certain mental emotions, or from the application... | |
 | William Aitken - 1863 - 782 Seiten
...phenomena are presumed to occur in man, for the following reasons: — Sudden operations of the mind and the application of cold produce paleness of the...effect which can only arise from contraction of the minute arteries, and the diminution of the quantity of blood thereby conveyed by them. The subsequent... | |
 | William Aitken - 1864 - 988 Seiten
...phenomena are presumed to occur in man, for the following reasons : — Sudden operations of the mind and the application of cold produce paleness of the...effect which can only arise from contraction of the minute arteries, and the diminution of the quantity of blood thereby conveyed by them. The subsequent... | |
 | John Hughes Bennett - 1866 - 1076 Seiten
...to be imperceptible. Although we cannot see these changes in man under the microscope, certain facts indicate that the same phenomena occur. The operations...from direct experiment on the web of the frog's foot, and which constitutes the second step of the process. In other cases, the redness may arise primarily... | |
 | William Aitken - 1866 - 976 Seiten
...same phenomena are presumed to occur in man, for the following reasons: Sudden operations of the mind and the application of cold produce paleness of the...effect which can only arise from contraction of the minute arteries, and the diminution of the quantity of blood thereby conveyed by them. The subsequent... | |
 | 1859 - 394 Seiten
...be weak, the capillary contraction occurs more slowly and gradually. If it be very coucencentrated, the phenomenon is not observed, or it passes so quickly...foot, constituting the second step of the process. In other cases, the redness may arise primarily trom certain mental emotions, or from the application... | |
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