The portal system seen in all vertebrates is

Options

A. Hepatic
B. Renal
C. Both (a) and (b)
D. Pulmonary

Answer

C

Explanation

Blood flows through afferent or portal veins to an organ in which these veins branch into capillaries collected in efferent veins. A portal system is found in the liver and kidney of all vertebrate except cyclostomes and mammals.