Simple Squamous Epithelium • Single layer of flat cells – lines blood vessels (endothelium), closed body cavities (mesothelium) – very thin --- controls diffusion, osmosis and filtration What is the primary function of this tissue (protection or transport)? (Hint: What is its function as an endothelium,…as mesothelium?)
15
Embed
Simple Squamous Epithelium Single layer of flat cells – lines blood vessels (endothelium), closed body cavities (mesothelium) – very thin --- controls.
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Simple Squamous Epithelium
• Single layer of flat cells– lines blood vessels (endothelium), closed body cavities
(mesothelium)– very thin --- controls diffusion, osmosis and filtration
What is the primary function of this tissue (protection or transport)? (Hint: What is its function as an endothelium,…as mesothelium?)
Examples of Simple Squamous Epithelium
• Section of intestine showing serosa
• Surface view of lining of peritoneal cavity
Is this endothelium, mesothelium, or neither?
Simple Cuboidal Epithelium
• Single layer of cube-shaped cells viewed from the side
Where would you find simple cuboidal epithelium in the body? Does it typically function in protection or transport in these locations?
Classification of Epithelial Tissues
Example of Simple Cuboidal Epithelium
• Sectional view of kidney tubulesWhy do some cells look as if they do not have a nucleus?
Nonciliated Simple Columnar
• Unicellular glands =goblet cells secrete mucus– lubricate GI, respiratory, reproductive and urinary systems
• Microvilli = fingerlike projections of cell membraneDescribe the differences between cilia and microvilli in terms of
both their structure and function. Are you likely to find them on the same tissue? Why or Why not?
Example: Nonciliated Simple Columnar Epithelium
• Section from small intestineThe term “brush border” is often used to describe
this tissue. What does it refer to?
Ciliated Simple Columnar Epithelium
• Single layer rectangular cells with cilia• Mucus from goblet cells moved along by cilia
Example Ciliated Simple Columnar Epithelium
• Section of uterine tubeWhat is another name for this organ?