Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Fluid Movement Between Compartments01:18

Fluid Movement Between Compartments

The force applied by fluids against a surface, known as hydrostatic pressure, initiates the transfer of fluid among different compartments. Within our blood vessels, the blood's hydrostatic pressure is a result of the heart's pumping action. At the arteriolar end of capillaries, hydrostatic pressure (capillary blood pressure) exceeds the opposing colloid osmotic pressure created primarily by plasma proteins like albumin. This discrepancy in pressure propels plasma and nutrients from the...
Transcellular Transport of Solutes01:23

Transcellular Transport of Solutes

Transcellular transport of solutes is the movement of substances like monosaccharides and amino acids through polarized cells. This transport mechanism is primarily seen in epithelial and endothelial cells aided by membrane transport proteins such as channels and transporters. The tight junctions between these cells confine the membrane proteins to the two sides of the cell. The epithelial cells have distinct apical and basolateral domains. In contrast, the endothelial cells show the luminal...
Facilitated Transport01:19

Facilitated Transport

The chemical and physical properties of plasma membranes cause them to be selectively permeable. Since plasma membranes have both hydrophobic and hydrophilic regions, substances need to be able to transverse both regions. The hydrophobic area of membranes repels substances such as charged ions. Therefore, such substances need special membrane proteins to cross a membrane successfully. In  facilitated transport, also known as facilitated diffusion, molecules and ions travel across a membrane via...
Facilitated Transport01:19

Facilitated Transport

The chemical and physical properties of plasma membranes cause them to be selectively permeable. Since plasma membranes have both hydrophobic and hydrophilic regions, substances need to be able to transverse both regions. The hydrophobic area of membranes repels substances such as charged ions. Therefore, such substances need special membrane proteins to cross a membrane successfully. In facilitated transport, also known as facilitated diffusion, molecules and ions travel across a membrane via...
Facilitated Transport01:19

Facilitated Transport

The chemical and physical properties of plasma membranes cause them to be selectively permeable. Since plasma membranes have both hydrophobic and hydrophilic regions, substances need to be able to transverse both regions. The hydrophobic area of membranes repels substances such as charged ions. Therefore, such substances need special membrane proteins to cross a membrane successfully. In  facilitated transport, also known as facilitated diffusion, molecules and ions travel across a membrane via...
Capillary Exchange01:28

Capillary Exchange

The cardiovascular system's chief role is to disseminate gases, nutrients, waste, and other substances to the body's cells. Small molecules like gases, lipids, and lipid-soluble substances directly diffuse through capillary wall endothelial cell membranes. Glucose, amino acids, and ions, including sodium, potassium, calcium, and chloride, use transporters for facilitated diffusion via membrane-specific channels. Glucose, ions, and bigger molecules may also pass through intercellular clefts.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Closing the Research-to-Practice Gap in Autism: A Professional Practice Intervention Pilot Study for Increasing Use of Evidence-Based Practice.

American journal of speech-language pathology·2025
Same author

Prewarming effect on adaptation, porosities, and strength of a composite resin.

Journal of the mechanical behavior of biomedical materials·2023
Same author

Student perceptions of two simulated learning environments in paediatric audiology.

International journal of audiology·2019
Same author

Delayed Photoactivation of Dual-cure Composites: Effect on Cuspal Flexure, Depth-of-cure, and Mechanical Properties.

Operative dentistry·2019
Same author

Plasma and synovial fluid concentrations and cartilage toxicity of bupivacaine following intra-articular administration of a liposomal formulation to horses.

Equine veterinary journal·2018
Same author

Characterization of the live salmonid movement network in Ireland: Implications for disease prevention and control.

Preventive veterinary medicine·2015

Related Experiment Video

Updated: Jul 7, 2026

Combining Fluidic Devices with Microscopy and Flow Cytometry to Study Microbial Transport in Porous Media Across Spatial Scales
12:32

Combining Fluidic Devices with Microscopy and Flow Cytometry to Study Microbial Transport in Porous Media Across Spatial Scales

Published on: November 25, 2020

Fluid transport: a guide for the perplexed.

A E Hill1

  • 1The Physiological Laboratory, Department of Physiology, Development and Neuroscience, Cambridge University, Cambridge, UK. aeh1@hermes.cam.ac.uk

The Journal of Membrane Biology
|February 9, 2008
PubMed
Summary
This summary is machine-generated.

This review clarifies complex theories of fluid transport in epithelia, comparing their strengths in explaining quasi-isotonic transport and its regulation. It provides a clear assessment of current models for researchers in physiology.

More Related Videos

The Diffusion of Passive Tracers in Laminar Shear Flow
08:01

The Diffusion of Passive Tracers in Laminar Shear Flow

Published on: May 1, 2018

Window on a Microworld: Simple Microfluidic Systems for Studying Microbial Transport in Porous Media
14:25

Window on a Microworld: Simple Microfluidic Systems for Studying Microbial Transport in Porous Media

Published on: May 3, 2010

Related Experiment Videos

Last Updated: Jul 7, 2026

Combining Fluidic Devices with Microscopy and Flow Cytometry to Study Microbial Transport in Porous Media Across Spatial Scales
12:32

Combining Fluidic Devices with Microscopy and Flow Cytometry to Study Microbial Transport in Porous Media Across Spatial Scales

Published on: November 25, 2020

The Diffusion of Passive Tracers in Laminar Shear Flow
08:01

The Diffusion of Passive Tracers in Laminar Shear Flow

Published on: May 1, 2018

Window on a Microworld: Simple Microfluidic Systems for Studying Microbial Transport in Porous Media
14:25

Window on a Microworld: Simple Microfluidic Systems for Studying Microbial Transport in Porous Media

Published on: May 3, 2010

Area of Science:

  • Physiology
  • Cell Biology
  • Biophysics

Background:

  • Fluid transport across epithelia is a complex physiological process.
  • Existing theories struggle to fully explain quasi-isotonic fluid transport and its regulation.
  • Understanding these mechanisms is crucial for various biological and medical contexts.

Purpose of the Study:

  • To critically examine major theories of fluid-transporting epithelia.
  • To assess the ability of each theory to explain quasi-isotonic fluid transport.
  • To elucidate the influence of salt transport, osmotic permeability, and basal tonicity on fluid transport.

Main Methods:

  • Concise exposition of the fundamental principles of each major theory.
  • Explicitly outlining the advantages and disadvantages of each theoretical model.
  • Comparative analysis of theoretical performance regarding quasi-isotonic fluid transport.

Main Results:

  • Identified limitations in current theories regarding quasi-isotonic fluid transport.
  • Detailed comparison of theoretical frameworks, highlighting their explanatory power.
  • A tabular summary of the overall performance of each theory is presented.

Conclusions:

  • The field of epithelial fluid transport remains complex, necessitating a clear understanding of existing theories.
  • This review provides a structured comparison to aid in assessing and advancing fluid transport models.
  • Further research is needed to refine theories and fully elucidate quasi-isotonic fluid transport mechanisms.