Share: Cervical dystonia (say: serv-ical dis-tone-ee-a) is a condition in which the muscles in the neck contract, twisting the head to one side and pulling the chin to the shoulder.Sometimes the shoulder on the affected side will also be pulled up toward the head.hare: Cervical dystonia (say: serv-ical dis-tone-ee-a) is a condition in which the muscles in the neck contract, twisting the head to one side and pulling the chin to the shoulder.
How do scientist classify air masses? Scientists classify air masses according to their general characteristics and latitude. Artic air masses form at around 60 degrees latitude, Polar masses are at around 40 â¦ degrees latitude, warm tropical air masses are at 15 degrees latitude and very hot air masses form near the equator.
two of these air masses: the cold, dry air mass coming from Canada, and the warm, moist. air mass that forms over the Gulf. The cold, dry Candian air mass is an example of a cP. air mass, standing for continental (dry) polar (cold). The warm, moist air that forms over. the Gulf and generates almost all of the precipitation over the Eastern 2/3 of the United. States is an example of an mT air mass, meaning maritime (moist) Tropical (warm).