Double Circulation

Q.

Which of the following is the correct sequence for the pulmonary circuit?

1. Left Auricle $\to$ Pulmonary Vein $\to$ Lungs $\to$ Pulmonary Artery $\to$ ​​​​​​​Right Ventricle​​​​​​​

2. Right Ventricle $\to$ Pulmonary Artery $\to$ Lungs $\to$ Pulmonary Vein $\to$ Left Auricle

3. Left Auricle $\to$ Pulmonary Artery $\to$ Lungs $\to$ Pulmonary Vein $\to$ ​​​​​​​Right Ventricle​​​​​​​

4. Right Ventricle $\to$ Pulmonary Vein $\to$ Lungs $\to$ Pulmonary Artery $\to$ Left Auricle

Q.

List the functions of saliva.

Q.

In amphibians, a three chambered heart causes the mixing of oxygenated and deoxygenated blood. Which of the following is the effect of this type of arrangement?

1. Maintenance of a constant body temperature

2. Efficiency in transporting oxygen.

3. Inefficiency in transporting oxygen.

4. Efficient energy generation.

Q. has the thickest wall in the heart.

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

Q.

Which type of organism has more than three types of chambers in the heart?

Q. The bicuspid valve is the inflow valve for the right ventricle.

1. True
2. False

Q.

The lower chambers of heart which pump with the maximum pressure are called _________. Choose the correct option.

1. Ventricles

2. Atria

3. Venules

4. Arterioles

Q.

Which of the following organisms have double circulation?

1. Human

2. Birds

3. Crocodiles

4. All of these

Q.

Select the correct statements about the heart.

1. Blood flows at tremendous pressure through the heart, so valves are absent.

2. Deoxygenated blood flows on the right side and oxygenated blood flows on the left side.

3. The atrium and the ventricle on the right side contract simultaneously, and the atrium and the ventricle on the left side contract simultaneously.

4. The two atria contract simultaneously, and the two ventricles contract simultaneously.

Q. What is double circulation? Explain.

Q.

How many times will a red blood corpuscle have to pass through the heart in its journey from the hepatic artery to the aorta?

1. Several times

2. Only once

3. Two times

4. Four times

Q.

The lower chambers of the heart which pump with the maximum pressure are called _________.

1. Ventricles

2. Atria

3. Venules

4. Arterioles

Q. Arteries carry oxygenated blood except for ?

1. Pulmonary
2. Cardiac
3. Systematic
4. Hepatic