Because it moves sideways.
That is the name. Unless you have another name in mind. Sometimes it is called the fluid mosaic model or the cell membrane.
Pinocytosis
The fluid surrounding the cell is called interstitial fluid. The fluid inside the plasma membrane of the cell is called cytoplasm.The fluid surrounding the cell can also be called "Extracellular fluid". Also, the fluid inside the plasma membrane can also be called "cytosol"
The cell membrane acts like a fluid because of its phospholipid bilayer. Phospholipids are designed in such a way that they are prevented from packing tightly together allowing molecules to drift around in the membrane. This is commonly called fluid mosaic.
Its called "the fluid mosaic model" of the cell membrane. This describes the clumping together of phospholipids to form rafts and their motion (along with single phospholipids) throughout the membrane.
cell membrane
The cell membrane is sometimes referred as "mosaic" because is a work of art made of individual tiles or other pieces assembled to form a picture or design.
The fluid contained with the cell membrane but outside the nucleus is called the cytoplasm.
Yes, the Fluid Mosaic Model of the cell membrane describes this characteristic.
cell membrane
Cytoplasm
cytoplasm