Class 9  >  CBSE Class 9 Biology(TISSUES)-Videos & documents by Letstute  >  Epithelial Tissue - Tissues - Class 9 - Science

Epithelial Tissue - Tissues - Class 9 - Science Video Lecture - CBSE Class 9 Biology(TISSUES)-Videos & documents by Letstute

11 videos|7 docs

FAQs on Epithelial Tissue - Tissues - Class 9 - Science Video Lecture - CBSE Class 9 Biology(TISSUES)-Videos & documents by Letstute

1. What is epithelial tissue?
Ans. Epithelial tissue is a type of tissue that covers the external and internal surfaces of the body. It forms the lining of organs, ducts, and cavities. Epithelial tissue is composed of tightly packed cells that are arranged in a continuous sheet-like structure.
2. What are the functions of epithelial tissue?
Ans. Epithelial tissue performs a variety of functions in the body. It acts as a protective barrier against physical and chemical injuries, helps in the absorption and secretion of substances, facilitates sensory perception, and provides structural support to the underlying tissues.
3. How many types of epithelial tissue are there?
Ans. There are several types of epithelial tissue based on their structure and function. Some common types include squamous epithelium, cuboidal epithelium, columnar epithelium, and transitional epithelium. Each type has unique characteristics and is found in specific areas of the body.
4. Where can epithelial tissue be found in the body?
Ans. Epithelial tissue can be found in various locations throughout the body. It lines the outermost layer of the skin, covers the surfaces of organs such as the lungs and intestines, forms the lining of blood vessels and glands, and lines the urinary and reproductive tracts.
5. How does epithelial tissue contribute to homeostasis?
Ans. Epithelial tissue plays a crucial role in maintaining homeostasis, which refers to the stable internal environment of the body. It helps regulate the exchange of gases, nutrients, and waste products between the body and the external environment. Additionally, epithelial tissue helps in the regulation of body temperature and protects against microbial invasion.
11 videos|7 docs
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