Veins are blood vessels located throughout your body that collect oxygen-poor blood and return it to your heart. Veins are part of your circulatory system. They work together with other blood vessels and your heart to keep your blood moving. Veins hold most of the blood in your body. In fact, nearly 75% of your blood is in your veins.

Veins (/ veɪn /) are blood vessels in the circulatory system of humans and most other animals that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are those of the pulmonary and fetal circulations which carry oxygenated blood to …

A list of veins in the human body: Veins of the heart. Coronary sinus. Great cardiac vein; Oblique vein of left atrium; Middle cardiac vein; Small cardiac vein; Pulmonary veins; Superior vena cava. Brachiocephalic vein. Inferior thyroid vein; Inferior laryngeal vein; Pericardial veins; Pericardiophrenic veins; Bronchial veins; Vertebral vein ...

2018年4月14日 · Your venous system is a network of veins that carry blood back to your heart from other organs. We’ll explain the basic structure of a vein before diving into different types of veins and their...

2023年4月24日 · Review the major systemic veins of the body including the veins of the neck, arm, forearm, abdomen, pelvis, thigh, and leg in this interactive tutorial.

2023年8月3日 · Veins are the blood vessels that collect the deoxygenated blood from the various tissues and organs of the body and transport it back to the heart. The blood vessels that carry blood toward the heart are veins. All veins carry the deoxygenated blood except the pulmonary veins and the umbilical veins.

2024年9月13日 · Veins can be categorized into four main types: pulmonary, systemic, superficial, and deep veins. Pulmonary veins carry oxygenated blood from the lungs to the left atrium of the heart. Systemic veins return oxygen-depleted blood …

2024年6月20日 · Veins are a vital component of the circulatory system, working alongside arteries and capillaries to facilitate the circulation of blood throughout the body. In contrast to arteries, which transport oxygen-rich blood from the heart to the body’s tissues, veins carry deoxygenated blood back to the heart for reoxygenation.

The vein system diagram illustrates the structure and organization of veins in the body. It shows how veins branch out from larger vessels, such as the vena cava and pulmonary veins, into smaller vessels that eventually lead to capillaries.

2025年1月9日 · Explore the intricate human venous system, detailing its structure, function, and the vital role veins play in circulatory health. The human venous system is essential for circulating blood back to the heart, ensuring oxygen-depleted blood is returned for reoxygenation.