The heart is divided into………….. chambers.
a) two
b) three
c) four
d) one
Each upper chamber of the heart is called……
a) atrium
b) auricle
c) ventricle
d) both a and b
Each lower chamber of the heart is called……
a) atrium
b) auricle
c) ventricle
d) both a and b
The atria (singular atrium) are………….walled chambers.
a) thick
b) thin
c) porous
d) none
The ventricles are………….walled chambers.
a) thick
b) thin
c) porous
d) none
Right atrium of the heart communicates with…
a) left atrium
b) right ventricle
c) left ventricle
d) aorta
