In the testes, or testicles, there are a group of cells called the interstitial cells of Leydig. Their main purpose is to produce the hormone testosterone,
interstitial cells
Testosterone
The fluid located in the space between the cells is known as extracellular fluid.
Interstitial Fluid
Fluid similar to seawater that surrounds and bathes all body cells is called interstitial fluid. It contains glucose, salt, fatty acids and minerals such as calcium, magnesium and potassium, and acts as a fueling station of nutrients for our cells.
The interstitial cells of Leydig in the testicles produce testosterone.
These are the interstitial cells.
interstitial fluid
endocrine secretions
Fluid in the spaces between cells
Lymph comes from the interstitial fluids spaces in blood where interstitial fluid is found. Lymph is composed mainly of white blood cells.