Superficial Veins
Superficial Veins - Related Videos
05:00
Grade III Varicocele Surgical Treatment using Spermatic Vein-Superficial Abdominal Vein Shunt
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Cited by 2 •
2024
Here, we present a protocol for grade III varicocele surgical treatment that aims to rebuild the venous drainage of the spermatic cord by a spermatic vein-superficial abdominal vein shunt performed under the microscope.
09:40
Ultrasound Assessment of Flow-Mediated Dilation of the Brachial and Superficial Femoral Arteries in Rats
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Cited by 11 •
2016
Non-invasive assessment of endothelial function in humans can be determined by the flow-mediated dilation technique. Although thousands of studies have used this technique, no study has performed this technique non-invasively in rats. The following article describes non-invasive measurement of flow-mediated dilation in the brachial and superficial femoral arteries of rats.
04:36
Murine Superficial Lymph Node Surgery
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Cited by 10 •
2012
To follow the progression of an immune response over time within the same mouse, lymph nodes can be sequentially removed by surgery. Here, we describe how this technique can be performed.
01:17
Veins
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2024
Veins are an integral part of our circulatory system, serving as the blood vessels that transport blood from all body regions to the heart. They are a network of hollow tubes that carry blood low in oxygen from the body's cells back to the heart for reoxygenation. Veins are crucial for maintaining the body's overall fluid balance and the continuous circulation of blood. Structure of Veins: The structure of veins is specifically designed to assist in the low-pressure transportation of blood...
06:00
Laparoscopic Anatomic S7+S8d Resection Preserving Inferior Right Hepatic Vein and S6 with Right Hepatic Vein Transection
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2025
We present a laparoscopic technique for anatomic S7+S8d resection with right hepatic vein transection, preserving the inferior right hepatic vein and segment S6. Relying on meticulous anatomical landmarks without intraoperative ultrasound, this approach offers a precise and parenchyma-sparing option for dorsally located right-liver tumors, particularly in settings with limited advanced navigation resources.
FAQs
One-way valves limit backward movement of blood, while skeletal-muscle contractions compress nearby veins and push blood forward. This pumping action is especially important when blood must travel upward against gravity from the limbs. When valve function weakens or muscular assistance becomes insufficient, blood can collect within the vessels instead of moving efficiently toward the heart.
Pressure changes during breathing contribute to the movement of blood through the low-pressure venous system. These changes work together with valves and muscle contractions rather than acting as an independent mechanism. Their combined effect supports venous return, particularly when blood must move from peripheral tissues toward the heart against gravitational forces.
Connections between superficial and deep veins allow blood to be distributed between these parts of the venous network. This arrangement provides more than a single pathway for return and links vessels near the skin with deeper circulation. In biology, studying these connections helps explain how blood moves through limbs and how impaired return can produce pooling.
Their position within subcutaneous tissues makes superficial veins relevant to clinical access. Healthcare procedures can use these vessels for blood sampling or intravenous access, connecting external techniques with the circulatory system. Their study therefore links venous anatomy to practical medicine, while also emphasizing how low pressure and one-way flow influence blood movement during clinical use.
Weakened valves allow blood to move backward more readily, reducing the effectiveness of one-way venous flow. The resulting impairment in return promotes pooling within the vessel, and accumulated blood can contribute to vessel enlargement. Varicose veins therefore illustrate how a change in valve performance can alter superficial venous circulation and visible vessel structure.
Changes in skin blood flow help the body regulate heat exchange with its surroundings. Because superficial veins participate in circulation near the skin, variation in blood flow through this region has biological relevance beyond transport toward the heart. Studying these changes connects venous anatomy with thermoregulation and shows how circulation supports multiple physiological functions.