Question

Find the odd one and write the reason:
1)Superior vena cava, Inferior vena cava, Pulmonary vein, Portal vein.
2) Lymph capillaries, Lymph ducts, Lymph Node, Spleen.

Answer 1

1)Superior vena cava, Inferior vena cava, Pulmonary vein, Portal vein.

— Odd one is portal vein. because all the other remaining are part of heart, whereas portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver.

2) Lymph capillaries, Lymph ducts, Lymph Node, Spleen.

— Odd one is spleen. Because all other are the part of lymph system.