Concept explainers
To discuss:
Distinctions between keratinized and non-keratinized stratified squamous epithelia on the basis of histology, location, and function.
Introduction:
Epithelial cells are a sheet of adhering cells that cover the body surfaces and cavities in the form of internal and external linings of body organs and tissues of glands. The main functions of the epithelial cells are protection, secretion, absorption, excretion, sensation, and filtration.
Stratified epithelial cells consist of 2 to 20 layers of epithelial lining, which appears in simple, cuboidal, and columnar in shape. It acts as a protective layer since it has more number of layers. It has capabilities to withstand epithelial abrasions. It undergoes self-renewing process, where the epithelial cells constantly fill the cavities of organs.
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ANATOMY AND PHYSIOLOGY THE UNITY OF FORM
- Which type of epithelial cell is found in glands? squamous cuboidal columnar transitionalarrow_forwardIn observing epithelial cells under a microscope, the cells are arranged in a single layer and look tall and narrow, and the nucleus is located close to the basal side of the cell. The specimen is what type of epithelial tissue? columnar stratified squamous transitionalarrow_forwardWhat do you mean by keratinised stratified squamous epithelium?arrow_forward
- Numerous hair-like structures extend from the cell membrane of the following type of tissue: O a. Simple Cuboidal Epithelium O b. Simple Squamous Epithelium c. Simple Columnar Epithelium O d. Keratinized Stratified Squamous Epithelium Oe. Ciliated Pseudostratfied Columnar Epitheliumarrow_forwardWhat is the best description for the following tissues (Explain in 1-3 sentences): Description: 1. Simple Squamous Epithelium2. Simple Cuboidal Epithelium3. Simple Columnar Epithelium4. Stratified Epitheliumarrow_forwardComplete the following table. Indicate the type of cells comprising the different layers of each subtype of stratified epithelium. Type of complex Superficial Middle Basal Function Epithelium 1. Stratified Squamous 2. Stratified Columnar 3. Stratified Cuboidal 4. Transitional epitheliumarrow_forward
- What are the differences between keratinized and nonkeratinized epithelium?arrow_forwardList down the histological description of the following epithelium and explain each Stratified Squamous Epithelium Keratinized Non- Keratinized Stratified Cuboidal Epithelium Stratified Columnar Epithelium Pseudostratified Columnar Epithelium Transitional Epitheliumarrow_forwardActivity 4: Identifying Epithelial and Connective Tissues (#23-33) Identify the epithelial and connective tissues (A-K). Each letter will only be used once. 23. Areolar____ 24. Simple cuboidal____ 25. Transitional epithelium 26. Hyaline cartilage 27. Fibrocartilage 28. Nonkeratinized stratified squamous_____ 29. Simple columnar____ 30. Pseudostratified____ 31. Blood____ 32. Compact bone____ 33. Simple squamous____arrow_forward
- Fill in the blank: 1. The or an internal passageway. 2. The rarest type of epithelium is is the side of the epithelial cell that faces the external environment and is only found in certain sweat glands. 3. The majority of connective tissue volume is matrix that consist of and 4. fibers are strong and unbranching. They resist forces in one plane of direction.arrow_forwardWhat is the difference of the following tissues? Simple squamous epithelium Simple cuboidal epithelium Simple columnar non-ciliated Simple columnar ciliated Stratified squamous keratinized/ cornified Stratified squamous non-keratinized/ non cornified Stratified cuboidal epithelium Stratified columnar epithelium Pseudo-stratified ciliated Pseudo-stratified non-ciliatedarrow_forward1. IDENTIFY THE EPITHELIUM. 2. IDENTIFY THE POINTED STRUCTURE. 3. WHAT GROUP OF EPITHELIUM DOES IT BELONG?arrow_forward
- Anatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax CollegeBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax