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Related Concept Videos

General Anesthesia: Overview01:24

General Anesthesia: Overview

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Anesthesia is a medical procedure that uses drugs for CNS suppression to enable painless surgeries and procedures. The selection of anesthetics is influenced by their pharmacokinetic properties, side effects, and patient characteristics. Various types of anesthesia include general, local, regional, spinal, and inhalational.
General anesthesia induces unconsciousness in the whole body, while the others target specific areas or sensations. It is administered to minimize adverse effects, maintain...
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Stages of General Anesthesia01:22

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Various sedation levels offer significant advantages in facilitating procedural interventions for patients undergoing medical or invasive surgical procedures. These levels span from anxiolysis to general anesthesia, providing a spectrum of sedative effects to cater to specific patient needs. Anxiolysis reduces anxiety and is achieved through minimal sedation, enabling patients to remain awake and responsive while feeling more at ease during the procedure. This level can benefit minor...
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Local Anesthetics: Pharmacokinetics01:13

Local Anesthetics: Pharmacokinetics

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The potency and duration of action of local anesthetics (LAs) are determined by their pharmacokinetics. Pharmacokinetics describes how LAs are absorbed, distributed, metabolized, and eliminated from the body. When administered to the vascular tissues, LAs are quickly absorbed and enter the systemic circulation, reducing their localized effects. Adding vasoconstrictors such as epinephrine to LAs reduces their absorption into the systemic circulation, making them clinically effective. The...
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Inhalational Anesthetics: Overview01:20

Inhalational Anesthetics: Overview

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Inhalation anesthetics are drugs that induce general anesthesia upon inhalation. They work by increasing the sensitivity of GABAA receptors or inhibiting NMDA receptors, leading to a decrease in central nervous system activity. The depth of anesthesia can be rapidly adjusted by changing the concentration of the inhaled gas. Some common examples of inhalational anesthetics include volatile liquids like isoflurane, desflurane, sevoflurane and gases like xenon and nitrous oxide. Isoflurane, a...
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Parenteral Anesthetics: Overview01:24

Parenteral Anesthetics: Overview

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Intravenous anesthetics are drugs administered parenterally to induce anesthesia or sedation. Propofol is a widely used agent formulated as a 1% emulsion in soybean oil, glycerol, and egg phosphatide. It induces rapid anesthesia primarily due to its rapid distribution from the bloodstream to target tissues and is metabolized in the liver. However, it can cause significant pain on injection and hypertriglyceridemia. Fospropofol, a water-based prodrug of propofol, lacks these adverse effects.
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Overview of Anatomy and Physiology01:24

Overview of Anatomy and Physiology

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Human anatomy is the scientific study of the body's structures. Some of these structures are very small and can only be observed and analyzed with the assistance of a microscope. Other larger structures can readily be seen, manipulated, measured, and weighed. The word "anatomy" comes from a Greek root that means "to cut apart." Human anatomy was first studied by observing the body's exterior and the wounds of soldiers and other injuries. Later, physicians were allowed to...
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Related Experiment Video

Updated: Mar 19, 2026

Use of an Integrated Low-Flow Anesthetic Vaporizer, Ventilator, and Physiological Monitoring System for Rodents
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[Physiology in Relation to Anesthesia Practice: Preface and Comments].

Yoshitsugu Yamada

    Masui. the Japanese Journal of Anesthesiology
    |June 21, 2016
    PubMed
    Summary
    This summary is machine-generated.

    Anesthesia practice relies on physiology, but technology has widened the gap between systemic and molecular levels. This review series bridges this divide, emphasizing systems physiology for better anesthesia care.

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    Area of Science:

    • Physiology
    • Anesthesiology

    Background:

    • Anesthesia practice is fundamentally based in physiology.
    • Technological advancements have created a gap between gross systemic parameters and molecular physiology in anesthesia.
    • A lack of integration approach contributes to this knowledge gap.

    Purpose of the Study:

    • To address the gap between anesthesia practice and molecular physiology.
    • To review current understanding and limitations in systems physiology relevant to anesthesia.
    • To highlight the importance of physiological inference in anesthesia.

    Main Methods:

    • This is a special series of reviews.
    • Reviews cover respiratory, cardiovascular, and nervous systems physiology.
    • Includes metabolism, fluid, acid-base, and electrolyte balance.

    Main Results:

    • Reviews explain current understanding and limits of physiological concepts.
    • New findings are incorporated to update knowledge.
    • Reaffirms the importance of physiological inference in anesthesia.

    Conclusions:

    • Advancement of systems physiology is crucial for modern anesthesia.
    • Integration of systems physiology enhances anesthesia practice.
    • Bridging the gap between systemic and molecular physiology is essential.