Question

Study the following simplified diagram representing the circulatory system and answer the questions:

Answer 1

Answer:

i. 1-PULMONARY VEIN

2-AORTA

3-HEPATIC ARTERY

4-HEPATIC PORTAL VEIN

5-RENAL ARTERY

6-RENAL VEIN

7-HEPATIC VEIN

8-VENA CAVA

9-PULMONARY ARTERY

ii. Renal artery- It comprises the narrower and weaker lumen.

                          The veins of the vessels are thicker.

                          The valves are absent here.

Renal vein- It comprises the larger and broader lumen.

                   The veins of the vessels are thinner.

                   The valves are present that prevent the blood from backflow.