Question

Q.3. Fill in the blanks with suitable words
11. The thinnest blood vessels is
2. The blood vessel with thick
walls is
3. The
collect impure blood from
all parts of the body.
artery
​

Answer 1

1) Capillaries.

2) Major Arteries.

3) Veins.

Answer 2

Answer:

1. Capillaries

2. Arteries

3.The pulmonary artery