Earth's Atmospheric Layers. Diagram of the layers within Earth's atmosphere. Troposphere. The troposphere starts at the Earth's surface and extends 8 to 14.5 kilometers high (5 to 9 miles). This part of the atmosphere is the most dense. Almost all weather is in this region.Stratosphere. The stratosphere starts just above the troposphere and extends to 50 kilometers (31 miles) high.he troposphere starts at the Earth's surface and extends 8 to 14.5 kilometers high (5 to 9 miles). This part of the atmosphere is the most dense. Almost all weather is in this region.
A bruise, or contusion, is a type of hematoma of tissue in which capillaries and sometimes venules are damaged by trauma, allowing blood to seep, hemorrhage, or extravasate into the surrounding interstitial tissues.
Ankle Contusion Overview. What is an ankle contusion? A person with an ankle contusion has a bruise over the ankle. A bruise is a collection of blood beneath the skin, caused by blood vessels that have broken at the time of an injury. What are the symptoms of an ankle contusion? Common symptoms of an ankle contusion include ankle pain, ankle swelling, and localized ankle tenderness. How does the doctor treat an ankle contusion? Treatment for an ankle contusion includes rest, cold compresses, elastic wrapping, ankle elevation, and pain medications.