IB Biology SL B3.2.5 Vein Adaptations Questions
Explore how valves, compressible walls and wide lumens support one-way, low-pressure blood return through veins in IB Biology SL B3.2.5.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Explain how venous valves prevent backflow and maintain one-way blood movement towards the heart.
- Explain how thin, flexible vein walls can be compressed by surrounding skeletal muscles to assist low-pressure return.
- Relate large venous lumens to reduced friction and efficient blood return at low pressure.
Learn this topic
IB Biology SL B3.2.5 Vein Adaptations Questions question 1
The structure of part of the digestive system is shown in the diagram below.
Explain how the structure of veins is adapted to their function.
All question bank results loaded