Q. In which, blood circulation starts and ends in capillaries?
A) Portal system
B) Capillary system
C) Arterial system
D) Lymphatic system
Explanation
Portal system is a part of venous circulation, which is present between two groups of capillaries, $i.e.,$ starts in capillaries and ends in capillaries. The vein which drains blood into organs other than heart is called portal vein
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.