Tissues Flashcards
What is simple epithelium?
A single layer of cells that offers very little protection
Simple epithelium is characterized by its thinness, allowing for processes like diffusion and filtration.
What is Simple Squamous Epithelium?
A single layer of flattened cells
Common at sites of diffusion and filtration, with close-fitting cells resembling tiled floors.
Where is Simple Squamous Epithelium commonly found?
At sites of diffusion and filtration
Examples include alveoli in lungs and capillaries.
What is Simple Cuboidal Epithelium?
A single layer of cube-shaped cells
It is primarily involved in secretion and absorption.
Where is Simple Cuboidal Epithelium typically located?
In kidney tubules
It plays a role in filtering blood and forming urine.
What is Simple Columnar Epithelium?
A single layer of elongated cells
It functions in absorption and secretion.
What are the main functions of Simple Columnar Epithelium?
Absorption and secretion of mucus and enzymes
Microvilli increase surface area for absorption.
Where is Simple Columnar Epithelium typically found?
In the digestive system
It includes structures like the intestines.
What are Goblet cells?
Cells that secrete mucus
They are often found in Simple Columnar Epithelium.
What is Pseudostratified Columnar Epithelium?
A single layer of cells at different heights
It may contain goblet cells and bear cilia.
What is the primary function of Pseudostratified Columnar Epithelium?
Mainly secretes mucus
It helps trap and move particles out of the respiratory tract.
Where is Pseudostratified Columnar Epithelium commonly found?
In most of the upper respiratory tract
It lines structures like the trachea.
