The diagram shows a cross-section of a blood vessel. What type of blood vessel is illustrated, and what is the direction of blood flow?
- Aartery, P to Q
- Bartery, Q to P
- Cvein, P to Q
- Dvein, Q to P
Biology 0610 · IGCSE · Blood vessels
The diagram shows a cross-section of a blood vessel. What type of blood vessel is illustrated, and what is the direction of blood flow?