Question

- Fill in the blanks.
1. The ______ system is a parallel circulatory system present in human beings.
2. RBCs have ______ types of antigens.
3. People with the blood group _______ have neither antigen.
4. People with the blood group ______ are called universal recipients.
5. People lacking the rhesus factor are called _______
6. The ______ septum separates the two auricles.
7. The ______ valve separates the left auricle and left ventricle.
8. In systemic circulation, arteries carry _______ blood away from the heart.
9. The sinoatrial node is the primary______ of the heart.
10. The heart stops beating suddenly and blood stops flowing through the body in a ________​

Answer 1

Explanation:

1) circulatory system

2) ncbi

3) ABO

4) AB

5) rh negative

6) atrium

7) mitral valve

8) oxygeneted blood

9) primary pacemaker site

Answer 2

Answer:

circulatory

ncbi

abu

ab

rh negative

atrium

mitral

oxygenated

primary pacemaker