Multiple Choice
When considering an internal organ like the heart or liver, based on what you know about epithelial tissue, do you think that most of the tissue that makes up that organ would be epithelial tissue or some other kind of tissue?
4. Tissues & Histology
Introduction to Epithelial Tissue
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You observe a tissue that has cells of varying heights. At first glance, it appears that the tissue has multiple cell layers, but upon closer investigation you see that all of the cells attach to the same basement membrane. What classification would you give to this epithelial tissue?
A
transitional epithelium
B
simple cuboidal epithelium
C
stratified columnar epithelium
D
pseudostratified columnar epithelium
E
stratified squamous epithelium
Verified step by step guidance1
Identify the key characteristics of the tissue: cells of varying heights and all cells attach to the same basement membrane.
Understand that tissues with cells of varying heights that appear to be layered but are not truly stratified are often classified as pseudostratified.
Recall that pseudostratified epithelium is a type of simple epithelium because all cells are in contact with the basement membrane, despite the appearance of multiple layers.
Differentiate pseudostratified columnar epithelium from other types: it is not stratified (multiple layers) nor simple cuboidal (uniform height and shape).
Conclude that the correct classification for this tissue, based on its characteristics, is pseudostratified columnar epithelium.
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