Classification of Epithelial Tissue

These flashcards cover key terms and definitions related to the classification and functions of different types of epithelial tissues.

Simple Squamous Epithelium

A type of epithelium consisting of a single layer of flattened cells, allowing for diffusion and lubrication.

Stratified Squamous Epithelium

A type of epithelium that consists of multiple layers of cells, primarily serving as a protective barrier.

Simple Cuboidal Epithelium

A type of epithelium with a single layer of cube-shaped cells, involved in secretion and absorption.

Simple Columnar Epithelium

A type of epithelium characterized by a single layer of tall, column-like cells, primarily for absorption and secretion.

Stratified Columnar Epithelium

An epithelium type comprised of multiple layers of columnar cells, functioning mainly as a protective layer.

Pseudostratified Epithelium

A type of epithelium that appears stratified but is actually a single layer of cells of varying heights, functioning in protection and secretion.

Transitional Epithelium

A specialized epithelial type in the urinary tract that allows stretching and can appear both cuboidal and flattened.

Glandular Epithelia

Epithelial tissues that are specialized for secretion, classified as exocrine or endocrine glands.

Merocrine Secretion

A mode of secretion where products are released from gland cells via exocytosis without losing cellular material.

Apocrine Secretion

A secretion process where the apical part of the cell is shed along with the product, requiring cell regeneration.

Holocrine Secretion

A secretion method where entire cells disintegrate to release their contents, including cell debris.

Unicellular Gland

A gland consisting of a single secretory cell, such as goblet cells, found in epithelial tissues.

Multicellular Gland

Glands that consist of more than one cell and can be classified based on their duct structure.