Best Answer: For ECG recording, 10 electrodes are used but at each level voltage difference between two electrode points is measured and the combination the two points is termed lead. Read on for further clarification.... The term lead in electrocardiography causes much confusion because it is used to refer to two different things. In accordance with common parlance the word lead may be used to refer to the electrical cable attaching the electrodes to the ECG recorder.
The ethnonym Afghan (Ø§ÙØºØ§Ù AfÄ¡Än) has been used in the past to denote a member of the Pashtuns,[1] and that usage still persists in some places in Afghanistan.[2] The name Afghanistan (Ø§ÙØºØ§ÙØ³ØªØ§Ù AfÄ¡ÄnistÄn; Afghan + -stan) is a derivation from the ethnonym Afghan, originally in the loose meaning land of the Pashtuns and referred to the Pashtun ...
Location and Geography. Afghanistan is a land-locked Asian country of 251,825 square miles (652,225 square kilometers) bordered by Pakistan, Iran, Turkmenistan, Uzbekistan, Tajikistan, and China. The topography is a mix of central highlands and peripheral foothills and plains.