Functions and Classification of Epithelium Quiz

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Match the following cell junctions with their functions:

Tight junctions = Fuse adjacent plasma membranes together like a zipper Adhesion junctions (Desmosomes) = Anchoring junctions that prevent cells from being pulled apart Gap junctions = Allow communication between cells Hemidesmosomes = Serve as stable anchorage at the basal part of epithelial cells

Match the following structures to their locations:

Desmosomes = Found in the walls of epithelial cells Hemidesmosomes = Found at the basal part of epithelial cells Apical surface = Always has one free surface exposed to the body exterior or cavity of an internal organ Basal surface = The lowermost surface portion of epithelium

Match the following surface modifications with their descriptions:

Microvilli = Fingerlike extensions of the plasma membrane that increase surface area, common in tissues that absorb and secrete substances Cilia = Hairlike projections commonly found in the lining of trachea and other internal tracts, propel substances along the epithelial surface Smooth & slick surfaces = Some exposed surfaces are smooth and slick without modifications Exposed surfaces with microvilli or cilia = Exhibit modifications to increase functionality such as absorption or propulsion

Match the function of epithelium with the correct description:

Protection = Epithelium that protects against mechanical, chemical, and bacterial factors Absorption = Epithelium found in the digestive tract that absorbs nutrients Filtration = Epithelium in the kidneys that filters waste products Secretion = Epithelium specialized in glandular secretion Signup and view all the answers

Match the shape of epithelial cells with their corresponding description:

Squamous = Flattened, scalelike, and horizontal cells Cuboidal = Cube-shaped cells with a centered nucleus Columnar = Column-like and vertically oriented cells Pseudo-columnar = Cells not anchored to the base membrane and arranged in a columnar shape Signup and view all the answers

Match the classification of epithelium with the correct definition:

Simple = Epithelium consisting of a single layer, often involved in absorption and filtration Stratified = Epithelium with multiple layers, typically found in high abrasion areas for protection Polyhedral = Irregularly shaped epithelial cells in cross-section Multiple layers = Characteristic of stratified epithelial tissue Signup and view all the answers

Match the major classes of simple epithelial tissue with their primary function:

Class 1 = Function 1 Class 2 = Function 2 Class 3 = Function 3 Class 4 = Function 4 Signup and view all the answers

Match the terms related to epithelial tissue with their definitions:

Basement membrane = Attachment point for epithelial cells at their basal surface Polarity = Distinct apical and basal surfaces of epithelial cells Cellularity = Characterized by being closely packed without intercellular spaces Specialized contacts = Structures that join adjacent epithelial cells together Signup and view all the answers

Match the primary locations of different types of epithelium with their functions:

Digestive tract = Absorption function Kidneys = Filtration function Glands = Secretion function High abrasion areas = Protection function Signup and view all the answers

Match the following epithelial tissue types with their primary function:

Simple squamous epithelium = Absorption and diffusion Simple cuboidal epithelium = Secretion and absorption Simple columnar epithelium = Absorption and secretion Pseudostratified columnar epithelium = Protection, secretion, move mucus with cilia Signup and view all the answers

Match the following locations with the corresponding epithelial tissue type:

Mesothelia lining ventral body cavities = Simple squamous epithelium Lining of stomach, intestine, gallbladder = Simple columnar epithelium Lining of the nasal cavity, trachea, bronchi = Pseudostratified columnar epithelium Glands, ducts, portions of kidneys tubules = Simple cuboidal epithelium Signup and view all the answers

Match the following functions with the specialized features of the epithelial tissue:

Reduces friction, controls vessel permeability = Simple squamous epithelium Limited protection, secretion, absorption = Simple cuboidal epithelium Protection, secretion, absorption = Simple columnar epithelium Protection, secretion, move mucus w/cilia = Pseudostratified columnar epithelium Signup and view all the answers

Match the following descriptions with the corresponding specialized cells in the epithelial tissue:

Serves as a protective layer against pathogenic microorganisms as well as lubrication = Goblet Cells Cilia movement = Pseudostratified columnar epithelium Styling web pages = CSS Client-side scripting for web applications = JavaScript Signup and view all the answers