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 Experiment Videos

Blood flow and absorption from the rumen.

A Dobson

    Quarterly Journal of Experimental Physiology (Cambridge, England)
    |July 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    Ruminoreticular blood flow influences solute absorption, with a countercurrent exchanger model explaining tritiated water (HTO) uptake. This impacts water movement, though control mechanisms remain unclear.

    Related Concept Videos

    You might also read

    Related Articles

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

    Sort by
    Same author

    An experimental comparison of two methods for warming intravenous crystalloid solutions.

    Anaesthesia·2019
    Same author

    Emergency airway management in obstetric general anaesthesia.

    Anaesthesia·2015
    Same author

    The metabolic syndrome and cancer: Is the metabolic syndrome useful for predicting cancer risk above and beyond its individual components?

    Diabetes & metabolism·2015
    Same author

    Safe general anaesthesia without secure intravenous access.

    Anaesthesia·2015
    Same author

    Thio-urethanes improve properties of dual-cured composite cements.

    Journal of dental research·2014
    Same author

    Bidirectional association between weight change and depression in mid-aged women: a population-based longitudinal study.

    International journal of obesity (2005)·2013
    Same journal

    A cell-culture approach to the study of seizure activity.

    Quarterly journal of experimental physiology (Cambridge, England)·1989
    Same journal

    Growth and synapse formation by identified leech neurones in culture: a review.

    Quarterly journal of experimental physiology (Cambridge, England)·1989
    Same journal

    The school of Bernard Katz. London, 5 April 1989. Proceedings.

    Quarterly journal of experimental physiology (Cambridge, England)·1989
    Same journal

    Assessing some dynamic properties of the living nervous system.

    Quarterly journal of experimental physiology (Cambridge, England)·1989
    Same journal

    Some aspects of the neuromuscular system of Ascaris.

    Quarterly journal of experimental physiology (Cambridge, England)·1989
    Same journal

    Potassium channels activated by sodium.

    Quarterly journal of experimental physiology (Cambridge, England)·1989
    See all related articles

    Area of Science:

    • Ruminant physiology
    • Gastrointestinal absorption
    • Blood flow dynamics

    Background:

    • Ruminoreticular epithelium blood flow exhibits cyclical variations linked to feeding patterns.
    • Solute absorption, particularly of rapidly penetrating substances, is sensitive to blood flow within this range.
    • Understanding these dynamics is crucial for ruminant digestive health.

    Purpose of the Study:

    • To investigate the relationship between blood flow and solute absorption in the ruminoreticular epithelium.
    • To propose and evaluate a model for tritiated water (HTO) absorption.
    • To explore the implications of these findings for net water movement and splanchnic circulation.

    Main Methods:

    • Analysis of blood flow variations in the ruminoreticular epithelium related to feeding cycles.

    Related Experiment Videos

  • Modeling of HTO absorption, incorporating a proposed countercurrent exchanger mechanism.
  • Qualitative assessment of the model's consistency with known effects on water absorption.

    • Main Results:

    • Blood flow variations directly impact the absorption of rapidly penetrating solutes.
    • A countercurrent exchanger model behind the epithelium provides a satisfactory explanation for HTO absorption.
    • The proposed model's consequences align qualitatively with established knowledge of solute absorption and water movement.

    Conclusions:

    • The countercurrent exchanger model offers a plausible mechanism for HTO absorption in ruminants.
    • Cyclical blood flow changes significantly influence nutrient and water dynamics in the rumen.
    • Further research is needed to fully elucidate the control mechanisms of net water absorption and functional changes in the omasum and fat.