What cell part name is used to describe the outer edge of a red blood cell?

What cell part name is used to describe the dark center of a blood cell?What cell part name is used to describe the outer edge of a red blood cell?
I'm not exactly sure what you are asking either. The shape of a mature red blood cell is referred to as a biconcave disc due to the center part being somewhat flattened as compared to the edges (similar to a donut-shape). The center lighter portion is also known as "central pallor."

Unlike white blood cells, normal circulating red blood cells are not nucleated. Circulating red blood cells are the end-product of a maturation process that occurs almost completely in the bone marrow. If you are referring to the structure of immature red blood cells (rbcs that are still maturing in the bone marrow)...then the dark center is the nucleus and the outer portion is the cytoplasm. However, the nucleus is extruded prior to entering the bloodstream of a healthy individual, resulting in a uniform anucleate red cell.What cell part name is used to describe the outer edge of a red blood cell?
I'm not sure what you mean but I'll try my best.



Things in the center of a cell.



1)Nucleus. The control center of a cell





2)Endoplasmic reticulum Also known as the ER for i'ts long name.





3)The outer edge of a cell is called a cell membrane.





4)The Gel-like fluid that is transparent or sometimes blue in books due to visible appearance is called cytoplasm.





5)There is a small little ball inside the nucleus which is known as the Nucleolus.





6)There are also mitochondria which are more on the edge but close to the center which produce energy.





7)This is just a reminder or a tip just in case you don't know, There is a smooth and a rough endoplasmic reticulum.





8)There are also microtubules on the outer edge.





9)There is chromatin inside the nucleus.





10)There is a complex golgi body and a normal golgi body as well which recieves materials from the endoplasmic reticulum and distributes them to the rest of the cell, it is a helper of the endoplasmic reticulum.





That is all the information i have for now.