Respiratory Organ System

Q.

What are the characteristics of an ideal respiratory surface?

Q. Arrange the steps of respiration in the correct order.

1. Breathing
2. Respiration
3. Tissue exchange
4. Transport
5. Alveoli exchange

Q. In the respiratory system, rings of cartilage are found in .

1. lungs
2. alveoli
3. trachea
4. diaphragm

Q. Assertion (A): Alveoli of the lungs are lined by epithelial cells.
Reason (R): Gas exchange occurs in the lungs.

1. Both A and R are correct and R is the correct explanation of A.
2. Both A and R are correct, but R is not the correct explanation of A.
3. A is correct but R is incorrect.
4. A is incorrect but R is correct.

Q. Which among the following statements are correct with respect to external respiration?

1. $O_2$ from the inspired air enters into blood.
2. ${\mathrm{CO}}_2$ from various body parts is transported towards heart.
3. $O_2$ from the inspired air enters into lungs.
4. ${\mathrm{CO}}_2$ from various body parts is transported to lungs.

Q. is/are involved in the absorption of oxygen in our respiratory system.

1. Trachea
2. Alveoli
3. Diaphragm
4. Bronchi

Q. What is the use of pranayamam?

[Review question: Pg. No: 217]

Q. Respiratory system begins with:

1. Nose
2. Lungs
3. Pharynx
4. Windpipe

Q. Select the muscular sheet which is flat when it contracts and helps in breathing.

1. 
2. 
3. 
4. 

Q. ______ separates the chest cavity from the abdominal cavity.

1. Pharynx
2. Thorax
3. Heart
4. Diaphragm

Q.

Identify the parts labelled 1-8 in the diagram given below.

1. 1. Nasal passage, 2. Pharynx, 3. Trachea, 4. Lungs, 5. Bronchi, 6. Bronchioles, 7. Alveoli, 8. Diaphragm
2. 1. Nasal passage, 2. Pharynx, 3. Lungs, 4. Bronchi, 5. Bronchioles, 6. Diaphragm, 7. Alveoli, 8. Trachea
3. 1. Nasal passage, 2. Trachea, 3. Pharynx, 4. Lungs, 5. Bronchioles, 6. Bronchi, 7. Alveoli, 8. Diaphragm
4. 1. Nasal passage, 2. Pharynx, 3. Trachea, 4. Lungs, 5. Bronchi, 6. Alveoli, 7. Bronchioles, 8. Diaphragm

Q.

Identify the structure in the image.

1. Diaphragm
2. Trachea
3. Alveoli
4. Bronchi

Q. Unscramble and match the following:

$\begin{array}{cccc}& \text{Column I}& & \text{Column II}\\ \text{A}& \text{EILAOVL}& \text{1}& \text{Also called wind pipe}\\ \text{B}& \text{RATEHCA}& \text{2}& \text{Provides passage to both air and food}\\ \text{C}& \text{HMARDAIGP}& \text{3}& \text{Taking in of air}\\ \text{D}& \text{YXRNAPH}& \text{4}& \text{Muscular partition}\\ \text{E}& \text{TIOHANINAL}& \text{5}& \text{Exchange of gases}\end{array}$

1. A-5, B-2, C-4, D-1, E-3
2. A-5, B-1, C-4, D-2, E-3
3. A-5, B-2, C-3, D-1, E-4
4. A-5, B-1, C-2, D-4, E-3

Q. Which among the following is the function of alveoli?

1. Protection of lungs from mechanical shock.
2. Exchange of respiratory gases.
3. Storage of respiratory gases.
4. Prevention of entry of food particles into windpipe.

Q. In human body, lungs are located in the _____ cavity.

1. thoracic
2. chest
3. pelvic
4. abdominal

Q.

Which of the following is true about the exchange of gases in the lungs?

1. The concentration of carbon dioxide is higher in blood

2. The concentration of carbon dioxide is higher in air

3. The concentration of carbon dioxide is the same in blood and air

4. The concentration of carbon dioxide in the lungs varies