![This is blank.](https://digitalhistology.org/wp-content/themes/histology-unified/imgs/trans.png)
Simple cuboidal epithelium
In most cases, simple cuboidal epithelia line tubules, multiple examples of which are seen in this image. The cells in each can vary from nearly cube-shaped to rectangular. Some cells also have a prominent brush border on their free surfaces which is composed of microvilli. Due to the plane of section, the nuclei of some cells are not visible. Kidney 400x
![Simple cuboidal epithelium <p>In most cases, simple cuboidal epithelia line tubules, multiple examples of which are seen in this image. The cells in each can vary from nearly cube-shaped to rectangular. Some cells also have a prominent brush border on their free surfaces which is composed of microvilli. Due to the plane of section, the nuclei of some cells are not visible. Kidney 400x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Lin_.Simp-5-1-ping.png)
Simple cuboidal epithelium
In most cases, simple cuboidal epithelia line tubules, multiple examples of which are seen in this image. The cells in each can vary from nearly cube-shaped to rectangular. Some cells also have a prominent brush border on their free surfaces which is composed of microvilli. Due to the plane of section, the nuclei of some cells are not visible. Kidney 400x
![- Brush border <p>In most cases, simple cuboidal epithelia line tubules, multiple examples of which are seen in this image. The cells in each can vary from nearly cube-shaped to rectangular. Some cells also have a prominent brush border on their free surfaces which is composed of microvilli. Due to the plane of section, the nuclei of some cells are not visible. Kidney 400x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Lin_.Simp-5-2-ping.png)
- Brush border
In most cases, simple cuboidal epithelia line tubules, multiple examples of which are seen in this image. The cells in each can vary from nearly cube-shaped to rectangular. Some cells also have a prominent brush border on their free surfaces which is composed of microvilli. Due to the plane of section, the nuclei of some cells are not visible. Kidney 400x
![Simple squamous epithelium <p>In most cases, simple cuboidal epithelia line tubules, multiple examples of which are seen in this image. The cells in each can vary from nearly cube-shaped to rectangular. Some cells also have a prominent brush border on their free surfaces which is composed of microvilli. Due to the plane of section, the nuclei of some cells are not visible. Kidney 400x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Lin_.Simp-5-3-ping.png)
Simple squamous epithelium
In most cases, simple cuboidal epithelia line tubules, multiple examples of which are seen in this image. The cells in each can vary from nearly cube-shaped to rectangular. Some cells also have a prominent brush border on their free surfaces which is composed of microvilli. Due to the plane of section, the nuclei of some cells are not visible. Kidney 400x