Question

Fill up the blanks
a. The heart is a ____________ organ.
b. It ____________ and _____________ contracts and relaxes.
c. When the heart contracts, blood is pumped out of the heart through the __________.
d. When the heart relaxes, its artia are filled with blood brought by the ______.
e. The arteries and veins are linked by the __________.

Answer 1

Answer:

a. pumping

c. other parts of organ

d. vein

Hope it helps you

Answer 2

Explanation:

a. muscular organ

b. atrium and ventricles

c. aorta

d. superior vena cava

e. capillaries