Coronary Circulation

Q.

The opening of the right atrium into the right ventricle of the human heart is guarded by

1. Tricuspid valve

2. Pulmonary semilunar valves

3. Mitral valve

4. Bicuspid valve

Q.

What is bloodstream in human body?

Q. _____________ carries deoxygenated blood from the intestine to the liver before it is delivered to the systemic circulation

1. Aorta
2. Pulmonary artery
3. Hepatic portal vein
4. Pulmonary vein

Q.

The function of the coronary circulation is ________________

1. To supply blood to the musculature of heart.

2. To supply oxygenated blood to the thymus.

3. To remove deoxygenated blood from intestines.

4. To carry blood from the intestines to the liver for glycogen formation.

Q.

In human, blood passes from the inferior vena cava to the diastolic right atrium of heart due to

1. stimulation of the sino auricular node.

2. pressure difference between the Inferior vena cava and atrium

3. pushing open of the venous valves.

4. suction pull.

Q. The role of the coronary artery is _________________.

1. to supply blood to heart muscles
2. to carry blood away from the heart muscles
3. to supply blood to all parts of the body
4. none of the above

Q. In which chamber blood contains less oxygen among four chambers of heart