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Biology Chapter 12 - Circulation-2
1.
Human heart is ___ chambered?
a) two
b) Four
c) Five
d) three
2.
Human heart is consisting of?
a) one atrium and one ventricle
b) two atria and one ventricle
c) Two atria and two ventricles
d) one atrium and two ventricles
3.
Which one of the following is Not the layer of heart wall?
a) epicardium
b) endocardium
c) mesocardium
d) myocardium
4.
The outer layer of the heart wall is?
a) mesocardium
b) epicardium
c) myocardium
d) endocardium
5.
Myocardium is the ___ layer of heart wall.
a) inner
b) middle
c) outer
6.
Which one of the following pumps blood into the lungs?
a) right ventricle
b) left auricle
c) left ventricle
d) right auricle
7.
Which one of the following has thickest walls?
a) right ventricle
b) left auricle
c) right auricle
d) left ventricle
8.
The left atrium receives the?
a) pulmonary veins
b) inferior vana cava
c) coronary sinus
d) superior vana cava
9.
The left and right atria are separated from each other by?
a) interventricular septum
b) coronary sinus
c) interatrial septum
d) atrioventricular canal
10.
The left ventricle opens into the?
a) pulmonary trunk
b) aorta
c) right auricle
d) left auricle
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