líkamsvökva

Líkamsvökvi refers to the fluid found within the human body. These fluids are essential for numerous physiological processes, including nutrient transport, waste removal, temperature regulation, and lubrication. The primary body fluid is water, which constitutes a significant percentage of an adult's body weight. Body fluids are broadly categorized into intracellular fluid, which is contained within cells, and extracellular fluid, which is found outside of cells.

Extracellular fluid is further divided into interstitial fluid, which bathes the cells, and plasma, the liquid component of blood that circulates within the vascular system. Other extracellular fluids include cerebrospinal fluid, lymph, synovial fluid found in joints, and digestive secretions. The balance of these fluids, known as fluid balance or homeostasis, is critical for maintaining health. Electrolytes, such as sodium, potassium, and chloride, are dissolved in body fluids and play a vital role in nerve impulse transmission, muscle contraction, and maintaining osmotic pressure.

Disruptions in body fluid levels or composition can lead to various medical conditions, including dehydration, edema (swelling due to excess fluid), and electrolyte imbalances. These imbalances can have serious consequences for organ function. Therefore, understanding and maintaining proper body fluid levels is fundamental to overall well-being.