Lungs

Q.

Goblet cells of the alimentary canal are modified from?

1. Chondrocytes

2. Compound epithelial cells

3. Squamous epithelial cells

4. Columnar epithelial cells

Q.

Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because

1. there is a negative intrapleural pressure pulling at the lung walls

2. there is a negative pressure in the lungs

3. pressure in the lungs is higher than the atmospheric pressure

4. there is a positive intrapleural pressure

Q.

What is the role of intercostal muscles and diaphragm in breathing ?

Q.

What is the function of the bronchi in the respiratory system?

Q. The vertebral formula of human adult is:

1. $C_7{T}_{12}{L}_5{S}_{5}C{d}_1$
2. $C_7{T}_{12}{L}_{\left(5\right)}{S}_{\left(5\right)}C{d}_5$
3. $C_7{T}_{12}{L}_5{S}_{\left(5\right)}C{d}_{\left(4\right)}$
4. $C_7{T}_{12}{L}_5{S}_{\left(5\right)}C{d}_4$

Q.

The space between the two lungs is called the _____.

1. pleural cavity

2. THORACIC SPACE

3. pericardial cavity

4. mediastinum

Q.

Write the correct sequence of steps followed during the journey of oxygen-rich blood from the lungs to various organs of the human body.

Q.

The majority of carbon dioxide produced by our body cells is transported to the lungs as

1. dissolved in the blood

2. attached to hemoglobin

3. as carbonates

4. as bicarbonates

Q. Which of the following statements is/are false about columnar epithelium?
i. It is made of tall and slender cells.
ii. Free surface may have microvilli.
iii. They are found in stomach and intestine and help in secretion and absorption.
iv. Ciliated epithelium is mainly present in hollow structures like bronchioles and fallopian tubes.
v. They have apical nuclei.

1. (i) only
2. (v) only
3. (ii) and (iv)
4. (ii) and (iii)
   

Q.

Which of the following is not an excretory organ?

1. Kidney

2. Skin

3. none of these

4. Lung

Q.

Inspiration occurs when the pressure within the lungs is

1. Less than the atmospheric pressure

2. Greater than the atmospheric pressure

3. Equal to the atmospheric pressure

   
   

4. None of the above

   
   

Q.

A fluid filled double membranous layer surrounds the lungs. Name it and mention its important function.

Q. In humans, the lungs are divided into separate lobes. Which of the following option correctly represents the number of lobes in the right lung and the left lung respectively?

1. 4, 2
2. 4, 3
3. 3, 2
4. 4, 1

Q.

What is the thoracic cavity and its constituents?

Q. Which is the correct sequence of sub-divisions in the internal structure of lungs?

1. Respiratory Bronchiole - Alveolar Duct - Atria - Alveoli
2. Respiratory Bronchiole - Alveolar Duct - Atria - Alveoli
3. Respiratory Bronchiole - Atria - Alveolar Duct - Alveoli
4. Respiratory Bronchiole - Atria - Alveoli - Alveolar Duct

Q. What is the cerebral aqueduct?

Q. What is the difference between cutaneous and pulmonary respiration?

Q.

Cuboidal epithelial cells are found in salivary glands.

1. True
2. False

Q.

What is the name of the partition between thorax and abdomen?

Q.

Fill in the blank spaces:

(a) All mammals (except a few) have __________ cervical vertebra.

(b) The number of phalanges in each limb of human is __________

(c) Thin filament of myofibril contains 2 ‘F’ actins and two other proteins namely __________ and __________.

(d) In a muscle fibre Ca⁺⁺ is stored in __________

(e) __________ and __________ pairs of ribs are called floating ribs.

(f) The human cranium is made of __________ bones.

Q. The ___is present on the left lung, and is produced to accommodate the space taken up by the apex of the heart.

Q. The central compartment of the thoracic cavity between the pleural sacs of the two lungs is known as:

1. Pleural cavity
2. Mediastinum
3. Thoracic cavity
4. Rima glottidis

Q. Oxygen moves from the lungs into the bloodstream through

1. small blood vessels in the lungs
2. lymphatic veins
3. a large artery in the heart
4. blood vessels in the bronchi

Q. (a) Draw a labelled diagram of human respiratory system.
(b) Explain the transportation of oxygen and carbon dioxide in human beings.

Q.

The muscular layer separating thoracic and abdominal cavity in mammals is called ___________

Q.

Lungs have several narrow tubes called

1. Alveoli

2. Bronchi

3. Bronchioles

4. Trachea

Q. What is the correct labelling of diagram given below?

1. A-Fundic portion, B-Cardiac region, C-Pyloric region, D-Food pipe, E-Wind pipe
2. A-Fundus, B-Pyloric region, C-Cardiac region, D-Oesophagus, E-Duodenum
3. A-Fundic region, B-Cardiac region, C-Pyloric region, D-Oesophagus, E-Duodenum
4. A-Cardiac region, B-Pyloric region, C-Fundic region, D-Oesophagus, E-Duodenum

Q.

Which of the following cells is circular and biconcave in shape?

1. RBC

2. Bacillus

3. Coccus

4. Spirochetes

Q. What are the functions of:
Larynx, trachea, bronchi and lungs in humans?

Q. Accumulation of blood in the pleural cavity is called

1. pleuritis
2. haemothorax
3. none of these
4. pneumothorax