What exactly is the cortex of cytoplasm?

The cortex of the cytoplasm refers to the outermost layer of the cytoplasm, also known as the ectoplasm or cell cortex. It is a clear and glassy layer that surrounds the inner granular mass of the cytoplasm, known as the endoplasm. The cortex is responsible for maintaining the shape of the cell and playing a role in cell movement. The tonoplast is not a term commonly used in biology, and protoplasm refers to the living content of a cell, including the cytoplasm and the nucleus. The medulla is a term used to describe the innermost part of an organ or structure.