Lab Report
Purpose:
To observe epithelial tissue by using a microscope to compare prepared slides.
Introduction:
Epithelial tissue covers the whole surface of the body. It is made up of cells closely packed and ranged in one or more layers. This tissue is specialized to form the covering or lining of all internal and external body surfaces. Epithelial tissue can be divided into two groups depending on the number of layers of which it is composes. Epithelial tissue which is only one cell thick is known as simple epithelium. If it is two or more cells thick such as the skin, it is known as stratified epithelium.
Materials and Methods:
Microscope Simple cuboidal c.s.
Simple squamous (surface) slide Simple columnar c.s
Stratified squamous (nonkeratinized) Pseudostratified (ciliated)
Stratified Squamous (keratinized) Transitional
Using the microscope observe the prepare slides of different types of epithelial tissues. Observe each tissue, by using picture handout given in class with examples of each epithelial tissue. Compare what is seen in the microscope with the example given in the packet. While observing each slides prepare a labeled sketch of a representative portion of the tissue seen in the microscope and label each part of the cell seen.
Results:
Discussion:
The first tissue studied was the simple squamous epithelium, which looked like just a box with small dots some larger than others. The larger ones were much darker than the smaller ones. With the squamous epithelium sample couldn’t really see much detail of this cell except for the nucleus.The simple cuboidal epithelium tissue was studied next It looked like small circle and within those circles were smaller circle, and inside those circles were little dark dots which was the nucleus. The free surface was also seen. Next was simple columnar epithelium looked like small circles also inside of a big circle and in each circle were one dot which was the nucleus. Both the simple cuboidal
To observe epithelial tissue by using a microscope to compare prepared slides.
Introduction:
Epithelial tissue covers the whole surface of the body. It is made up of cells closely packed and ranged in one or more layers. This tissue is specialized to form the covering or lining of all internal and external body surfaces. Epithelial tissue can be divided into two groups depending on the number of layers of which it is composes. Epithelial tissue which is only one cell thick is known as simple epithelium. If it is two or more cells thick such as the skin, it is known as stratified epithelium.
Materials and Methods:
Microscope Simple cuboidal c.s.
Simple squamous (surface) slide Simple columnar c.s
Stratified squamous (nonkeratinized) Pseudostratified (ciliated)
Stratified Squamous (keratinized) Transitional
Using the microscope observe the prepare slides of different types of epithelial tissues. Observe each tissue, by using picture handout given in class with examples of each epithelial tissue. Compare what is seen in the microscope with the example given in the packet. While observing each slides prepare a labeled sketch of a representative portion of the tissue seen in the microscope and label each part of the cell seen.
Results:
Discussion:
The first tissue studied was the simple squamous epithelium, which looked like just a box with small dots some larger than others. The larger ones were much darker than the smaller ones. With the squamous epithelium sample couldn’t really see much detail of this cell except for the nucleus.The simple cuboidal epithelium tissue was studied next It looked like small circle and within those circles were smaller circle, and inside those circles were little dark dots which was the nucleus. The free surface was also seen. Next was simple columnar epithelium looked like small circles also inside of a big circle and in each circle were one dot which was the nucleus. Both the simple cuboidal