Extracellular fluids make up about 15% to 21% of adult body weight.
The total amount of body fluids is about 60% of total body weight, and the extracellular fluid in human body fluids is about 21% of total body weight. Tissue fluid and plasma together make up most of the extracellular fluid, with tissue fluid accounting for about 15% of body weight and plasma accounting for about 6% of body weight.
The extracellular fluid usually consists of water, gases, inorganic salts and organic compounds, etc. It is an important part of the body’s environment and can effectively maintain the environment within the body.
When there is an abrasion or defect in the skin, it will usually flow out with a yellowish liquid, which is called tissue fluid and will not hinder wound healing. When the tissue fluid flow need to pay attention to keep the affected area clean and hygienic, pay attention to disinfection, to prevent bacterial infection, scab after the extracellular fluid will not flow out.
In addition, dehydration and salt deficiency are the main causes of extracellular fluid osmotic pressure malfunction, so the body needs to pay attention to the intake of water and salt to balance the content of these two substances in the body.