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Related Concept Videos

Venous Return01:04

Venous Return

The circulatory system plays a crucial role in ensuring the optimal functioning of the human body. One of its critical components is venous return - the process that completes the blood circulation cycle. This article will delve into the concept of venous return, how it works, and its significance to our health.
What is Venous Return?
Venous return refers to the rate at which blood flows back to the heart from the body's peripheral veins. It's an integral part of the circulatory system as it...
Overview of Systemic Veins01:11

Overview of Systemic Veins

Systemic veins are crucial blood vessels that return deoxygenated blood from various body tissues back to the heart. There are three systemic veins that return deoxygenated blood to the heart, they are as follows.
The coronary sinus, the heart's principal vein, resides in the coronary sulcus on the heart's posterior aspect. This broad venous channel receives nearly all venous blood from the myocardium, the heart muscle. It is fed by three primary veins: the great cardiac vein, the middle...
Overview of Systemic Arteries01:11

Overview of Systemic Arteries

The human body is a complex, well-organized machine, and at the heart of its operations lies the circulatory system. This network of blood vessels, which includes systemic arteries, plays a vital role in maintaining life by transporting nutrients, oxygen, and waste products to and from cells throughout the body.
Systemic circulation is the part of the cardiovascular system that carries oxygenated blood away from the heart to the body's tissues and returns deoxygenated blood back to the heart.
Veins as Blood Reservoirs01:10

Veins as Blood Reservoirs

Veins, while chiefly responsible for circulating blood back to the heart, also function as storage vessels for blood. They house approximately 64 percent of the body's total blood volume, a feat made possible by their high capacitance—the inherent ability to expand and accommodate large volumes of blood, even under low pressure. The large diameter and thin walls of veins augment their distensibility, significantly more so than arteries, due to their classification as capacitance vessels. When...
Veins of Thorax01:19

Veins of Thorax

The azygos system is a crucial part of the body's circulatory system and drains most of the thorax. It comprises the azygos, hemiazygos, and accessory hemiazygos veins.
The azygos vein, positioned just right of the midline and anterior to the vertebral column, begins at the junction of the right ascending lumbar and subcostal veins, terminating in the superior vena cava. This vein drains blood from the right side of the thoracic wall, thoracic viscera, and posterior abdominal wall.
The...
Veins of Upper Limbs01:17

Veins of Upper Limbs

The human circulatory system, a marvel of biological engineering, is a complex network of vessels that transport blood throughout the body. Among these, the veins responsible for carrying blood from the upper limbs are divided into two categories: deep and superficial.
The deep venous system is primarily composed of the ulnar and radial veins. The ulnar vein, which drains the fingers through the superficial palmar venous arches, and the radial vein, which serves the palms via the deep palmar...

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Related Articles

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

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Same author

Contribution of splanchnic and musculocutaneous vascular compartments to the formation of blood flow volume in the vena cava posterior during catecholamine treatment.

Bulletin of experimental biology and medicine·2012
Same author

[Haemodynamic structure of the venous return changes in action of pressor neurogenic and humoral stimuli upon the circulation system].

Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova·2008
Same author

Changes in the resistance in brachiocephalic artery and thoracic aorta basins during depressor reactions of the circulatory system.

Bulletin of experimental biology and medicine·2008
Same author

Role of vascular system adrenoceptors in formation of venous return.

Bulletin of experimental biology and medicine·2006
Same author

[Changes in the major circulation vessel capacity and their role in forming the venous return shifts under the effect of catecholamines].

Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova·2006
Same author

[Participation of the cava vein blood flow in forming the total venous return under influence of different modality stimuli on the circulation system].

Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova·2004

Related Experiment Video

Updated: Jun 2, 2026

Anatomical Reconstructions of the Human Cardiac Venous System using Contrast-computed Tomography of Perfusion-fixed Specimens
06:02

Anatomical Reconstructions of the Human Cardiac Venous System using Contrast-computed Tomography of Perfusion-fixed Specimens

Published on: April 18, 2013

[Venous return in systemic haemodynamics].

A V Samoĭlenko

    Rossiiskii Fiziologicheskii Zhurnal Imeni I.M. Sechenova
    |April 27, 2011
    PubMed
    Summary

    This study clarifies venous return to the heart, presenting data on key cardiovascular metrics. It introduces a new concept explaining circulatory responses as a double wave phenomenon.

    Area of Science:

    • Cardiovascular Physiology
    • Hemodynamics
    • Circulatory System Dynamics

    Context:

    • Venous return to the heart is complex and not fully understood under various physiological conditions.
    • Existing models may not adequately capture the dynamic interplay of factors influencing blood flow.
    • Accurate understanding of venous return is crucial for diagnosing and treating cardiovascular diseases.

    Purpose:

    • To generalize and clarify the complex problems associated with venous return to the heart.
    • To present comprehensive data on the venous return/cardiac output ratio, peripheral resistance, arterial pressure, and vascular bed capacity.
    • To introduce and advance a novel concept regarding the double wave nature of circulatory pressor systemic responses.

    Summary:

    • The paper addresses ambiguities in venous return physiology, providing data on critical hemodynamic parameters.

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    Anatomical Reconstructions of the Human Cardiac Venous System using Contrast-computed Tomography of Perfusion-fixed Specimens
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    Published on: April 18, 2013

    Demystifying Venous Excess Ultrasound (VExUS): Image Acquisition and Interpretation
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  • It analyzes the relationship between venous return and cardiac output, alongside peripheral resistance, arterial pressure, and vascular capacity.
  • A new theoretical framework is proposed, describing circulatory pressor responses as originating from a double wave mechanism.

    • Impact:

    • Provides a clearer understanding of venous return dynamics, aiding in the diagnosis of cardiovascular conditions.
    • Offers a new conceptual model for interpreting systemic circulatory responses, potentially leading to novel therapeutic strategies.
    • Enhances the scientific basis for hemodynamic research and clinical practice in cardiovascular medicine.