The membrane of red blood cells, like most other cells in your body, has:

Cell membrane is a structure of a cell that contains lipid bilayer and embedded proteins. It functions to protect the cell from the surroundings and also controls the materials entering in or leaving out of the cell. The red blood cells (erythrocytes) are cells of the blood that carry oxygen to be distributed to all the body tissues. The cell membrane of the red blood cells like many other body cells contain very few sodium channels.

Few sodium channels  
Since Naâş particle fixation is a noteworthy determinant of extracellular liquid osmolarity, changes in Naâş focus influence the development of liquids and thereby affect liquid volume and circulatory strain.

Ithink your answer will be c hope that’s you