An electrocardiogram â abbreviated as EKG or ECG â is a test that measures the electrical activity of the heartbeat. With each beat, an electrical impulse (or âwaveâ) travels through the heart. This wave causes the muscle to squeeze and pump blood from the heart. A normal heartbeat on ECG will show the timing of the top and lower chambers. The right and left atria or upper chambers make the first wave called a âP wave â following a flat line when the electrical impulse goes to the bottom chambers.
With the thick hair, they may appear sluggish at first glance but the Afghan Houndsâ speed, agility, and endurance is legendary. They are fierce hunters with strong jaws and they have relentless attitudes in hunting. As sight hounds, they are alert and always ready to act.
Note that type 4 hair is one the most common hair types found in black hair (african american hair). 1  Type 4A hair is full of tight coils. It has a âSâ pattern when stretched, much like Type 3 curly hair.  Type 4B hair has a less defined pattern of curls and looks more like a âZâ as the hair bends with very sharp angles.