Total tissue water responded as predicted by van't Hoff's osmotic relation to H2O?diluted seawater but was not clearly affected by the admixture of seawater with isosmotic MgSO4, suggesting that this solution may act as an isotonic medium.
Disturbance of symmetry results in a net electron current; a pulse of electromagnetic radiation is emitted which is strongest in directions per- pendicular to the net current.
A pulse in the veins is too weak to be felt, although sometimes it is measured by sphygmograph (see below); the tracing obtained is called a phlebogram. The pulse is usually felt just inside the wrist below the thumb by placing two or three fingers lightly upon the radial artery.