Breathing and Exchange of Gases (2022) - Quiz 1

• A - IV, B and C - III, D - I, E - II

• A - IV, B - III, C and D - I, E - III

• A - II, B and C - III, D - I, E - IV

• A - III, B and C - I, D - II, E - IV

Amphibians e.g. frogs respire –

• (a) Through moist skin

• (b) Lungs

• (c) Both a and b

• (d) Trachea

Which is the correct sequence of air passages in man?

Which of the following options is wrong about the larynx (sound box)

• It is a bony box

• Glottis is the opening into the larynx

• During swallowing of food glottis is covered by epiglottis to prevent food entry into the larynx

• All

Trachea divides into right and left primary bronchi at _____th thoracic vertebra.

• 4

• 5

• 6

• 9

Incomplete cartilaginous rings support all of the following except –

• Trachea

• Primary, secondary and tertiary bronchi

• Respiratory bronchioles

• Initial bronchioles

Lungs are comprised by –

• Only alveoli

• Pleura

• Different types of bronchi

• Network of bronchi, bronchioles and alveoli

Sites of gaseous exchange in lungs are –

• Alveoli

• Tracheoles

• Bronchioles

• Pleura

***** I... It is double layered and covers the lungs

***** II... Fluid between the layers reduces friction on lung-surface

***** III... Outer layer is in contact with thoracic wall

***** IV... Inner layer is in contact with lungs

The above features refer to –

• Pericardium

• Peritoneum

• Pleura

• None

The conducting part of the respiratory system has functions.

• Filter, warm and moisten the air

• Gaseous exchange

• Filtering the air only

• Warm the air