The word hydrolymph, referring to the fluid in the lymphatic system, is spelled with the prefix hydro- combining the Greek word for water (hydor) and the suffix -lymph from the Greek lymphos meaning clear water or spring. The word is pronounced /haɪˈdrɒlɪmf/ with the first syllable stressed, and an "o" sound followed by a "y" sound in the prefix. The "lymph" portion of the word is pronounced with a short "i" sound followed by a "f" sound. This spelling captures the Greek origins of the word while reflecting its scientific meaning.
Hydrolymph, also known as interstitial fluid or tissue fluid, is a clear, colorless liquid that fills the spaces between cells in the body. It is an essential component of the interstitial spaces and is vital for the proper functioning of the body's tissues and organs. Hydrolymph is composed of water, electrolytes, nutrients, hormones, oxygen, and waste products from cellular metabolism.
The primary function of hydrolymph is to transport nutrients and oxygen to the cells, while removing metabolic waste and carbon dioxide from the cells. It also acts as a medium for the exchange of substances between the blood and the cells. As blood circulates through the capillaries, hydrolymph is forced out of the blood vessels into the interstitial spaces, where it bathes the cells. This allows for the exchange of nutrients and waste products between the blood and the cells.
Hydrolymph also plays a crucial role in immune response. It contains white blood cells, such as lymphocytes, which help to fight off infections and foreign substances. In case of inflammation or infection, the hydrolymph in the affected area may contain increased levels of immune cells and inflammatory molecules.
Overall, hydrolymph maintains a delicate balance between the blood and the cells, ensuring proper hydration and nutrient exchange for the optimal function of the body's tissues and organs.
The circulating fluid in many of the invertebrates.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.