Ophthalmologists can play a pivotal role in detection and treatment of life-threatening disorders by recognizing syndromes associated with retinal tumors. Ophthalmologists can play a pivotal role in detection and treatment of life-threatening disorders by recognizing syndromes associated with retinal tumors.
The P wave in the ECG represents atrial depolarization, which results in atrial contraction.
P waves are pressure waves that travel faster than other waves through the earth to arrive at seismograph stations firstly, hence the name Primary. These waves can travel through any type of material, including fluids, and can travel at nearly twice the speed of S waves.