Human Heart

Q. Which among the following statements is not true about the heart?

a) The heart is situated between the lungs.
b) The size of the heart is equal to one's own fist.
c) The heart is made up of involuntary muscles.
d) Heart is covered by a triple walled membranous covering.

Q.

Pulmonary veins carry oxygen rich blood.

1. True

2. False

Q.

The impulse of heart beat originates from ___

1. Atrioventricular node

2. Cardiac

3. Vagus

4. Sinoatrial node

Q.

Which is NOT true about chordae tendineae?

1. They prevent collapsing of valves into atria

2. They are the stripes found in muscle fibres

3. They are attached to valves

4. They are attached to the skin

Q.

The veins from head, neck and arms drain into ___

1. Pulmonary artery

2. Aorta

3. Superior vena cava

4. Pulmonary vein

Q.

Why is the wall of right ventricle thinner than left ventricle?

1. Due to presence of valves within chambers

2. Due to higher pressure with which blood is pumped into arteries

3. Due to presence of deoxygenated blood

4. Due to presence of oxygenated blood

Q. In the diagram of human heart, certain parts have been identified by alphabets. Choose the correct set which matches the parts.

1. A- Inferior venacava, B- Superior venacava, C- Right atrium , D- Left ventricle , E- Pulmonary veins
2. A- Superior venacava, B- Inferior venacava, C- Right atrium, D- Right ventricle, E- Pulmonary artery
3. A- Aorta, B- Superior venacava, C-Left atrium , D- Left ventricle , E- Pulmonary veins
4. A- Superior venacava, B- Inferior venacava, C- Right atrium , D- Left ventricle , E- Pulmonary veins

Q. Which among the following statement is not true about the heart?

1. The heart is situated between the lungs.
2. The size of the heart is equal to one's own fist.
3. The heart is made up of involuntary muscles.
4. Heart is covered by a triple walled membranous covering.

Q. Which chamber of human heart pumps the oxygenated blood into aorta?

1. Right ventricle
2. Left ventricle
3. Right atrium
4. Left atrium

Q.

Which chamber of heart has the thickest wall?

1. Right ventricle

2. Left ventricle

3. Right auricle

4. Left auricle