Year 4 Ventilation Practice 1

Which term describes the pumping of air to the respiratory surface to replace the air that is already present.

• gas exchange

• digestion

• ventilation

• circulation

Which of the following is NOT a processe of ALL living organisms?

• ventilation

• growth

• metabolism

• respiration

The thorax is made up of

• nasal passage, pharynx & larynx

• trachea, bronchi & bronchioles

• rib cage, lungs & trachea

• rib cage, intercostal muscles & diaphragm

The trachea leads to the...

• Bronchioles
• Bronchi
• Esophagus
• Pulmonary Vessel

Which of the following is true for inhalation?

• internal intercostal muscles contract

• external intercostal muscles contract

• rib cage moves downwards and inwards

• rib cage move downwards and outwards

Which of the following is true for exhalation?

• rib cage moves up and out

• rib cage moves down and out

• Diaphragm relax and domes upwards

• Diaphragm relax and flattens

What are the main muscles of inhalation?

• The diaphragm and intercostal muscles

• The diaphragm and the abdominal muscles

• The smooth muscles and abdominal muscles

• The diaphragm and heart muscles

What happens when the external intercostals contract during inhalation?

• The diaphragm relaxes

• The ribs move out and up

• Pressure in the lungs increases

• The size of the thoracic cavity decreases

A contraction of the diaphragm during inhalation causes it to flatten. What else does the contraction result in?

• An increase in the volume of the thoracic cavity

• Increase in alveolar pressure

• A decrease in lung volume

• A decrease in the volume of the thoracic cavity

When air pressure inside the lungs is lower than air pressure in the atmosphere...

• Air moves into the lungs

• Air moves out of the lungs