Question

B. Give one word for the following
1. A group of specialised cardiac muscles in the wall of right atrium that initiates heartbeat.
2. Glycoproteins on the surface of RBCs that determine blood group. ​

Answer 1

Answer:

1. The SA node.

2. Blood group antigen

Answer 2

Answer:

1. myocardial

2. antigens

explanation:

1. A group of specialised cardiac muscles in the wall of right atrium that initiates heartbeat is myocardial.

2.Glycoproteins on the surface of RBCs that determine blood group is called antigens.