In this video, we're going to begin our lesson on simple epithelial tissues. Recall from our last lesson video, we said that structurally, humans have 8 types of epithelial tissues, and half of those, or 4 of those tissues, are going to be structurally categorized as simple epithelial tissues. The other half are going to be categorized as stratified epithelial tissues. But we'll talk about the stratified epithelial tissues later in our course. For now, we're focusing on simple epithelial tissues.
Recall that the term "simple" indicates that these four tissues are going to have just one single layer of cells, where all of the cells are going to come into direct contact with the basement membrane. Moving forward in our course, we're going to talk about each of these 4 simple epithelial tissues in their own separate videos. I'll see you all in our next video where we'll get to talk about the very first type of simple epithelial tissue in our lesson, which is simple squamous epithelial tissue. So, I'll see you all there.