The diagram illustrates a cross-section of part of a vein. Which organs would be encountered first in directions 1 and 2?
- A1: heart; 2: brain
- B1: intestine; 2: liver
- C1: kidney; 2: heart
- D1: lung; 2: heart
Biology 5090 · O Level · Blood vessels
The diagram illustrates a cross-section of part of a vein. Which organs would be encountered first in directions 1 and 2?