Simple epithelium Flashcards
(9 cards)
What is the primary characteristic of epithelial tissues regarding spacing?
It has very little intercellular space.
Epithelial tissues are densely packed with cells, minimizing the space between them.
What is one of the main functions of epithelial tissues?
They serve as a vast surface for blood circulation.
Epithelial tissues line surfaces and cavities throughout the body, facilitating various functions.
What type of junction prevents leakage between cells in epithelial tissues?
Tight Junction.
Tight junctions create a barrier that prevents substances from passing between cells.
What is the function of gap junctions in epithelial tissues?
Rapid ion transfer.
Gap junctions allow ions and small molecules to pass directly from one cell to another.
What are the key functions of adhering junctions in epithelial tissues?
They hold cells together tightly.
Adhering junctions provide structural support and maintain tissue integrity.
Fill in the blank: Epithelial tissues have a high _____ capacity.
regenerative
Epithelial tissues can rapidly regenerate to replace damaged cells.
True or False: Epithelial tissues have a significant amount of intercellular space.
False.
Epithelial tissues are characterized by minimal intercellular space.
What are the three types of cell junctions mentioned in the text?
- Tight Junctions
- Gap Junctions
- Adhering Junctions
These junctions play critical roles in maintaining the structure and function of epithelial tissues.
Define the term ‘epithelium’.
A tissue that covers the body surfaces and lines cavities
Epithelial tissue serves as a barrier and is involved in absorption, secretion, and sensation.
