Double Circulation

Q.

What is the difference between pulmonary and systemic circulation?

Q. Pulmonary artery carries _________________ blood to __________________

1. oxygenated blood, the heart
2. deoxygenated blood, the lungs
3. oxygenated blood, body parts
4. deoxygenated blood, body parts

Q. Systemic circulation is defined as the

1. flow of oxygenated blood from the ascending aorta to the heart muscle and the return of deoxygenated blood from the heart muscle to the right atrium
2. flow of deoxygenated blood from the right ventricle to the lungs and the return of oxygenated blood from the lungs to the left atrium
3. flow of oxygenated blood from left ventricle to all parts of the body and the return of deoxygenated blood from various body parts to the right atrium
4. flow of deoxygenated blood from the digestive organs to the liver before returning to the heart

Q. Choose the correct pathway for systemic circulation.

1. Right auricle → Left ventricle → Aorta → Tissues → Veins
2. Right ventricle → Pulmonary aorta → Tissues → Pulmonary veins → Left auricle
3. Left ventricle → Aorta → Arteries → Tissues → Veins → Right atrium
4. Left auricle → Left ventricle → Pulmonary aorta → Tissues → Right auricle

Q. What is the nature of blood passing through A, B, C and D respectively?

1. Deoxygenated - Oxygenated - Deoxygenated - Oxygenated
2. Deoxygenated - Deoxygenated - Oxygenated - Oxygenated
3. Oxygenated - Oxygenated - Deoxygenated - Deoxygenated
4. Oxygenated - Deoxygenated - Oxygenated - Deoxygenated

Q. Which of the following is a correct sequence of the flow of blood in a systemic circulation?

1. Heart $\to$ aorta $\to$ arteries $\to$ arterioles $\to$ capillaries $\to$ tissues $\to$ venules $\to$ veins $\to$ superior and inferior vena cava $\to$ heart
2. Heart $\to$ pulmonary artery $\to$ lungs $\to$ pulmonary veins $\to$ Heart
3. Heart $\to$ pulmonary veins $\to$ lungs $\to$ pulmonary artery $\to$ Heart
4. Heart $\to$ venules $\to$ veins $\to$ capillaries $\to$ tissues $\to$Aorta $\to$ arteries $\to$ arterioles $\to$ superior and inferior vena cava $\to$ heart

Q. Blood vessel carrying blood from lungs to heart is_____

1. pulmonary artery
2. pulmonary vein
3. carotid artery
4. coronary artery

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. Pulmonary circulation deals with the movement of deoxygenated blood from heart to lungs so that it can get oxygenated.

1. False
2. True

Q. Which of the following options represent correct blood flow pathway in pulmonary circulation?

1. Right ventricle $\underset{Artery}{\overset{Pulmonary}{\to }}$ Lung $\underset{Vein}{\overset{Pulmonary}{\to }}$ Right atrium
   
2. Left ventricle $\stackrel{Aorta}{\to }$ Body $\stackrel{Vena-Cava}{\to }$ Right atrium
3. Right ventricle $\underset{Vein}{\overset{Pulmonary}{\to }}$ Lung $\underset{Artery}{\overset{Pulmonary}{\to }}$ Right atrium
   
4. Right ventricle $\underset{Artery}{\overset{Pulmonary}{\to }}$ Lung $\underset{Vein}{\overset{Pulmonary}{\to }}$ Left atrium
   

Q.

In many vertebrates, including humans, blood flows in two circuits; in an arrangement called double circulation. Which of the following is not an advantage of double circulation over the single circulation organization found in fish?

1. Oxygenated and deoxygenated blood are present in separate compartments and prevent mixing of blood.

2. Oxygenated blood can be mixed with deoxygenated blood before passing through the tissues of the body.

3. The blood flows to the body tissues under higher pressure and faster, allowing for more efficient delivery of oxygen.

4. Blood flow to different parts of the body can be regulated more precisely to meet localized oxygen needs.

Q.

Which of the following organisms have double circulation?

1. Human

2. Birds

3. Crocodiles

4. All of these