Question

Give the answer in one word.
1. The arteries that carry deoxygenated blood
2.The large vein that brings back deoxygenated
blood from lower parts of body to heart
3. A group of specialised cardiac muscles
in the wall of right atrium that initiates
heartbeat
4. Glycoproteins on the surface of RBCs that
determine blood group​

Answer 1

Answer:

1...pulmonary arteries

2...inferior vena cava

3..SA node

Answer 2

1.Pulmonary arteries
2.Vena cava
3.SA Node
4.ABO Blood group