Veins have a wider lumen, little elastic or muscular tissue, and contain valves to prevent backflow of blood; blood flows at low pressure and is usually deoxygenated, except for the pulmonary vein.
As veias têm um lúmen mais largo, pouco tecido elástico ou muscular e contêm válvulas para prevenir o refluxo sanguíneo; o sangue flui a baixa pressão e geralmente está desoxigenado, exceto na veia pulmonar.
Front | What are the structural features of a vein |
---|---|
Back | Wider lumen Little elastic or muscular tissue Veins contain valves to prevent the back flow of blood Blood flows at low pressure and is usually deoxygenated except for pulmonary vein. |
Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.
Next card: Structural features capillary cell thick short diffusion distance
Previous card: Flow valve explain ways structure aorta related function
Up to card list: AQA Biology Flashcards