Question

Fill in the blanks :
1) Valves are present in ............
to direct blood flow in them towards heart .
2) .......... comes out of the left ventricle .
3) Blood is brought back into heart by .............. ​

Answer 1

Answer:

1.in the heart

2blood

3.superior vena cava

Answer 2

Answer:

1. heart

2.blood

3.superior venacava