Endocrine glands secrete hormones into the bloodstream, while exocrine glands secrete substances, such as sweat or enzymes, into organs or onto the surface of the body. The two main types of glands in ...

Cells produce various types of extracellular vesicles (EVs) that serve for short-range cell-to-cell communication in our bodies. As these EVs are usually less than one micrometer in size, the ...