What is the difference between stratified and simple
Study Mode. Identify two different types of epithelia in this section and describe the difference in structure and function between the two. Locate the apical and basal surfaces of the epithelium which lines the trachea. Describe the position of the nuclei. What type of epithelium is it? Classify the epithelium. What microscopic surface specializations do you notice? What macroscopic structures are present? Indicate the position of the basement membrane.
Pathology Please select whether to view the slides in study mode or quiz mode. Quiz Classify the epithelium. Answer: Simple squamous. The epithelium is the layer of cells at the top. Note the flattened nuclei and thin cytoplasm.
Answer: Simple cuboidal. Note the round nuclei and square-shaped cells, indicative of cuboidal. A single layer of cells rests on the basement membrane. Answer: Respiratory tract. Note the cilia on some of the cells and the presence of mucous-secreting cells.
Also, the epithelia is pseudostratified. Answer: Transitional epithelium. The layer that touches the basement membrane, however, will contain either squamous, cuboidal or columnar cells. Robert Godard began writing in for various creative blogs and academic publications. He has been featured on multiple film blogs and has worked in the film industry.
He attended Baltimore College, earning his B. TL;DR Too Long; Didn't Read Simple tissues are extremely thin -- good for absorption and filtration -- while stratified tissues are thicker, made up of several layers of cells, and offer more protection. Earthworm Phylum Characteristics. How to Make a Human Liver Model. How to Make a Prokaryotic Cell Model. The Anatomy of the Hydra. Components of Homeostasis. Parts of an Animal Cell for Kids.
What Are the Functions of Alveoli in the Lungs? Structure of the Muscular System. There are three types of stratified epithelial tissue based on the shape of cells. They are stratified squamous epithelial tissue, stratified cuboidal epithelial tissue and stratified columnar epithelial tissue. Stratified squamous epithelial tissue has cells that are similar to simple squamous epithelial tissue, but they are in several layers.
They can be keratinized or nonkeratinized. The outer skin layer has keratinized stratified squamous epithelial tissue. It consists of keratin protein which provides a protective function. Non-keratinized stratified squamous epithelial tissue can be seen in the oral cavity, oesophagus to the stomach junction, anus, rectum, vagina and cervix.
In contrast, stratified cuboidal epithelial tissue is present in the ducts of glands sweat glands, mammary glands while the stratified columnar epithelial tissue is present in transition areas junctions between other epithelial types.
In addition to these, the transitional epithelium is also a type of stratified epithelial tissue. It has cells of varying shapes, and they are stretched along the basement membrane. Its distribution is along the lining of the ureters, urethra, and bladder.
Pseudostratified epithelial tissue has a single cell layer. All the cells contact with the basement membrane. But the nuclei are in different layers in the pseudostratified epithelial tissue. The cells of pseudostratified epithelial tissue vary in height. When viewing the epithelial tissue, it appears to be composed of several cell layers as the cells are of different heights.
Only the tallest cells reach the surface, but all cells reside on the basement membrane. Due to this illusion, the epithelial tissue is named as pseudostratified. Most cells have cilia, and they can be seen along the trachea, bronchi and other respiratory structures.
The main function of the pseudostratified epithelium is to trap the dust and infectious particles. It also provides protection to those tissues. The key difference between simple stratified and pseudostratified epithelial tissue is that simple epithelial tissue has only one cell layer while stratified epithelial tissue has several cell layers and pseudostratified epithelial tissue appears to have several cell layers despite having only one cell layer.
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