Pulmonary Circuit

Q.

Mention the role of hilum in kidney.

Q. Fill in the following blanks with suitable words :
(c) ………………in the lungs provides a very large surface area for gaseous exchange.

Q. In a coloured diagram why do we generally show the pulmonary artery in blue and pulmonary vein in red colour?

Q.

State the exact location of the following.

Pulmonary semilunar valve

Q.

Choose the schematic diagram which properly represents pulmonary circulation in humans:

1. Right ventricle (oxygenated blood) $\to$ Lungs $\to$ deoxygenated blood $\to$ Aorta

2. Right ventricle (deoxygenated blood) $\to$ Lungs $\to$ oxygenated blood $\to$ Left auricle

3. Left ventricle (oxygenated blood) $\to$ Lungs $\to$ oxygenated blood $\to$ Right auricle

4. Right ventricle (deoxygenated blood) $\to$ Lungs $\to$ oxygenated blood $\to$ Aorta

Q. Name the two major circulations of blood in the human body.

Q. Describe double circulation of blood in human beings. Why is it necessary?​

Q. (b) Why does the heart need valves?​

Q. Veins and arteries carry blood. Which of these carry blood:​

(a) away from the heart?​ ​ ​ ​

Q. c) What is the name of the tubes which connect the kidneys to bladder?​ ​

Q. From where to where do the following blood vessels carry blood? (v) Hepatic portal vein.

Q. Where are the following located? (iii) Pulmonary semilunar valves.

Q. Which of the following contains oxygen rich blood?

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

Q. Which of the following are parts of the pulmonary circuit?

1. Blood from heart is carried to the lungs for oxygenation
2. Blood from all parts of the body is brought back to the heart
3. Oxygenated blood is pumped from the heart to all parts of the body
4. Oygenated blood is transported from the lungs to the heart.

Q. Fill in the blanks: (i) The have thin and less muscular , and have to prevent back flow of

Q. In humans, oxygen rich blood is brought to the heart from lungs by the

मनुष्यों में ऑक्सीजन प्रचुर रूधिर को फुफ्फुसों से हृदय में लाया जाता है

1. Aorta
   
   महाधमनी द्वारा
2. Vena cava
   
   महाशिरा द्वारा
3. Pulmonary veins
   
   फुफ्फुसीय शिराओं द्वारा
4. Pulmonary arteries
   
   फुफ्फुसीय धमनियाें द्वारा

Q. Name one animal having single circulation of blood and another having double circulation.​

Q. b) What are the lower parts of the heart called?​ ​ ​

Q. Fill in the blanks :
(i) Ventricles have walls when compared with those of atria.

Q. Differentiate between member of given below pair with reference to phrase in brackets:
(f) Artery and vein
(type of blood primarily flowing through)

Q. Name

(ii) largest vein in our body.​ ​ ​ ​

Q. Veins and arteries carry blood. Which of these carry blood:​

(b) back to the heart?​ ​ ​

Q. Identify trachea in this diagram.

1. B
2. A
3. C
4. D

Q. How does the blood move in systemic circulation in humans?

Q.

Assertion: Plants do not require an active pumping system like heart for transportation.

Reason: Plants have large proportion of dead cells and energy requirement is high.

1. Assertion is true and reason is false.

2. Assertion if false and reason is true.

3. Assertion and Reason both are false.

4. Assertion and reason both are true.

Q. Which is the first chamber of the heart to receive oxygenated blood?

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

Q. Pulmonary artery develops from

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

Q. Select the incorrect statement about pumping of blood by the human heart:

1. Carbon dioxide-rich blood is sent to the heart by all the organs.
2. Oxygenated and deoxygenated blood are separated.
3. Deoxygenated blood is the same as carbon dioxide rich blood.
4. Carbon dioxide-rich blood is sent to the heart by the lungs.

Q. The blood circulation that passes through the lungs is called __________circulation.

1. Pulmonary
2. Systemic
3. Complete
4. Half