Diaphragm and external intercostal muscles

Internal and external intercostal muscles

Visceral and parietal pleurae

Diaphragm and teres minor

Hypertrophy of the chest accessory muscles

Reduction in the size of the diaphragm

Low carbon dioxide levels in the blood

High oxygen levels in the blood

Decrease in the partial pressure of carbon dioxide in the blood

Diaphragm relaxes and internal intercostal muscles contract

Diaphragm and internal intercostal muscles relax

Diaphragm contracts and external intercostal muscles relax

Diaphragm and external intercostal muscles contract

Only external intercostal muscles contract

An increase in thoracic volume results in a decrease in pressure, while continued inspiration results in addition of air to the alveoli, causing an increase in pressure

An increase in alveolar size results in a decrease in pressure, while continued expiration results in addition of air to the alveoli, causing an increase in pressure

An increase in the activity of the internal intercostal muscles results in an initial pressure decrease, while relaxation of the muscles results in an increase in pressure

An decrease in the activity of the external intercostal muscles results in an initial pressure decrease, while relaxation of the muscles results in an increase in pressure

A decrease in alveolar size results in a decrease in pressure, while continued expiration results in addition of air to the alveoli, causing an increase in pressure

The diaphragm contracts during resting inspiration

The diaphragm contracts during forced expiration

Internal intercostals are used for resting expiration

External intercostals are used for forced expiration

Expiration is usually an active process

Inability to create a negative pressure in the lungs

An increase in tidal volume, but a reduction in inspiratory reserve volume

Inability to forcibly exhale air from the lungs

A reduction in tidal volume, but an increase in inspiratory reserve volume

Contraction of the interior intercostal muscles

Expansion of the thoracic cavity

Contraction of the diaphragm

Expansion of the lung tissue

Nose and mouth -> pharynx -> larynx -> trachea -> bronchi -> bronchioles -> alveoli

Nose and mouth -> larynx -> pharynx -> trachea -> bronchi -> bronchioles -> alveoli

Nose and mouth -> pharynx -> larynx -> trachea -> bronchioles -> bronchi -> alveoli

Nose and mouth -> larynx -> pharynx -> trachea -> alveoli -> bronchi -> bronchioles

Nasal cavity, pharynx, larynx, trachea, primary bronchi, secondary bronchi, tertiary bronchi, bronchioles, terminal bronchioles, respiratory bronchioles, alveolar duct, alveolar sac

Nasal cavity, larynx, pharynx, trachea, primary bronchi, secondary bronchi, tertiary bronchi, bronchioles, terminal bronchioles, respiratory bronchioles, alveolar duct, alveolar sac

Nasal cavity, pharynx, larynx, trachea, bronchioles, primary bronchi, secondary bronchi, tertiary bronchi, respiratory bronchioles, alveolar duct, alveolar sac

Nasal cavity, trachea, pharynx, larynx, primary bronchi, secondary bronchi, tertiary bronchi, bronchioles, terminal bronchioles, respiratory bronchioles, alveolar duct, alveolar sac

Nasal cavity, pharynx, larynx, trachea, primary bronchi, secondary bronchi, tertiary bronchi, respiratory bronchioles, terminal bronchioles, bronchioles, alveolar duct, alveolar sac

Surfactant

Mucous

Plasma

None of the other answers