Any of the muscles that are under our voluntary control (skeletal muscles) can cramp. Cramps of the extremities, especially the legs and feet, and most particularly the calf (the classic  charley horse ), are very common.
Northern Europe includes Denmark, Finland, Greenland, Iceland, Norway, and Sweden. This area is known for harsher environments. It is generally cold, has poorly developed soils and limited mineral resources. This region has a population of over 25 million people.
they are all located in northern europe for starters northern europe typically only includes the countries of denmark finland iceland norway and sweden all these count ries are nordic and to some extent considered scandinavianweden united kingdom however northern europe typically only includes the nordic countries denmark finland iceland norway and sweden