Why do we say basolateral membrane and not basal?

In summary, the term "basolateral membrane" is used in textbooks to refer to a specific part of the cell membrane that plays a role in transferring substances. This term is used because it describes both the bottom and side of the cell where the membrane is located. The distinction between the apical and basal sides of epithelial cells also contributes to the use of this term.
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red65
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Hello everyone, I am studying the physiology of the kidneys and in all of the textbooks they say basolateral membrane referring to the basal membrane, does anyone know why we don't just say basal membrane?
 
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Depending on the structure of the membrane you are talking about, basolateral might be referring to parts of the cell with the same function (transferring stuff across a membrane, which is what the kidney does a lot of). If that were the case the lateral membranes would provide an increase in surface area through which transfers could occur. If so, this would be a functional issue influencing the name used.

In general, there is a cytological distinction in many animal cells between the apical and basal sides of the cell. All epithelial cells have this distinction.
 
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1. Why is the term "basolateral membrane" used instead of "basal membrane"?

The term "basolateral membrane" is used to describe the membrane on the bottom and sides of a cell because it is composed of both basal and lateral components. The basal component refers to the bottom of the cell, while the lateral component refers to the sides. Therefore, "basolateral" is a more accurate and specific term to describe this membrane.

2. What is the difference between the basolateral membrane and the basal membrane?

The basolateral membrane refers to the membrane on the bottom and sides of a cell, while the basal membrane specifically refers to the bottom of the cell. The basolateral membrane is composed of both basal and lateral components, while the basal membrane is solely composed of basal components.

3. Why do we need to differentiate between the basolateral and basal membranes?

Differentiating between the basolateral and basal membranes is important because they serve different functions in the cell. The basolateral membrane is responsible for transporting substances in and out of the cell, while the basal membrane provides structural support and helps with cell adhesion.

4. Are there any other membranes in the cell that are named based on their location?

Yes, there are other membranes in the cell that are named based on their location. For example, the apical membrane refers to the membrane on the top of a cell, while the medial membrane refers to the membrane in the middle of a cell.

5. Is the term "basolateral membrane" used in all types of cells?

Yes, the term "basolateral membrane" is used in all types of cells that have distinct top and bottom surfaces. This includes epithelial cells, which line the surfaces of organs and tissues, and neurons, which have a distinct axon and dendrites.

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