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Related Concept Videos

Overview of Systemic Veins01:11

Overview of Systemic Veins

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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...
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Veins of Head and Neck01:19

Veins of Head and Neck

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The blood drainage from the head and neck is primarily managed by three pairs of veins: the external jugular, internal jugular, and vertebral veins. The external jugular veins drain superficial scalp and face structures, passing over the sternocleidomastoid muscles to empty into the subclavian veins.
On the other hand, the vertebral veins, unlike their arterial counterparts, are not primarily responsible for brain drainage. Instead, they drain the cervical vertebrae, spinal cord, and some small...
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Graphical and Analytic Representation of Sinusoids01:20

Graphical and Analytic Representation of Sinusoids

397
Analyzing two sinusoidal voltages with equal amplitude and period but different phases on an oscilloscope, an instrument used to display and analyze waveforms, involves a three-step process.
The first step is measuring the peak-to-peak value, which is twice the amplitude of the sinusoid. This provides information about the maximum voltage swing of the waveform.
Secondly, the period and angular frequency are determined. The period is the time taken for one complete cycle of the waveform, while...
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Veins of Thorax01:19

Veins of Thorax

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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...
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Sinusoidal Sources01:18

Sinusoidal Sources

526
Direct current (DC) refers to an electric current that flows in a single direction, maintaining a constant polarity. This is in contrast to alternating current (AC), which periodically changes its direction and magnitude. AC forms the backbone of modern electricity transmission and distribution systems due to its efficient long-distance transmission capabilities.
In homes, the power supplies use sinusoidal sources to provide electricity. These sources generate a voltage that varies sinusoidally...
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Lymphatic Vessels and Lymph Transport01:16

Lymphatic Vessels and Lymph Transport

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Lymphatic vessels, known as lymphatics, are crucial in transporting lymph from peripheral tissues to our venous system. This process begins with lymph entering through tiny capillaries that branch through tissues. These capillaries have unique features such as larger diameters, thinner walls, and a distinctive one-way valve system formed by overlapping endothelial cells.
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Positional Relationship between Two Microcatheters according to the Navigation Sequence within the Curved Vessel in Neuroendovascular Procedures.

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Related Experiment Video

Updated: Jun 25, 2025

Image Acquisition Method for the Sonographic Assessment of the Inferior Vena Cava
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[Transverse Sinus / Sigmoid Sinus].

Tomotaka Ohshima1

  • 1Neuroendovascular Therapy Center, Aichi Medical University Hospital.

No Shinkei Geka. Neurological Surgery
|May 24, 2024
PubMed
Summary

Understanding the microanatomy of the transverse sinus (TS) and sigmoid sinus (SS) is crucial for treating dural arteriovenous fistulas. This knowledge aids in selecting optimal transarterial embolization strategies.

Area of Science:

  • Vascular anatomy
  • Neurosurgery
  • Interventional radiology

Background:

  • Transverse sinus (TS) and sigmoid sinus (SS) are frequent locations for dural arteriovenous fistulas.
  • Transarterial embolization with liquid agents is the preferred treatment, preserving sinus integrity.

Purpose of the Study:

  • To emphasize the importance of microanatomical understanding for dural arteriovenous fistula treatment.
  • To detail the development and anatomy of the TS and SS.
  • To provide considerations for treating dural arteriovenous fistulas in these sinuses.

Main Methods:

  • Review of anatomical development of the TS and SS.
  • Analysis of venous drainage patterns, including the vein of Labbé.
  • Correlation of anatomical findings with treatment strategies for dural arteriovenous fistulas.

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Main Results:

  • Detailed description of TS and SS microanatomy.
  • Identification of critical anatomical landmarks for surgical and endovascular approaches.
  • Highlighting the significance of the vein of Labbé's junction with the TS.

Conclusions:

  • Precise anatomical knowledge, particularly microanatomy, is essential for successful dural arteriovenous fistula treatment.
  • Understanding venous connections optimizes embolization techniques, minimizing risks and preserving sinus function.
  • This review provides a foundation for informed treatment decisions regarding TS and SS dural arteriovenous fistulas.