H Anatomy - Respiratory and Digestive Review

Pulmonary ventilation, or breathing, involves

• muscle contraction

• changes in pressure

• movement of air from high to low pressure

• movement of air from low to high pressure

When you breathe in,

• the diaphragm contracts

• the diaphragm relaxes

• the external intercostal muscles contract

• the external intercostal muscles relax

The process of inspiration...

• is the process of breathing out

• involves the volume of the lungs increasing

• involves the intrapulmonary pressure to decrease

• involves the movement of air into the lungs due to the pressure inside the lungs being less than the atmospheric pressure

• involves the intrapulmonary pressure to increase

When the respiratory muscles relax and air moves out of the lungs

• inspiration

• expiration

The intrapleural pressure (pressure within the pleural cavity of the lungs) must be less than the intrapulmonary pressure to prevent the lungs from collapsing

• True

• False

When we breathe in, some air never reaches the sites of gas exchange, and remains in the passageways of the conducting zone.

• True

• False

Air passes through the _______ after entering through the nose or mouth.

• Pharynx

• Larynx

• Nasal Conchae

Select the missing step in the respiratory process.

Mouth/Nose > Pharynx > Larynx > Trachea > ______ > Bronchioles

• Primary, Secondary, and Tertiary Bronchi

• Primary Bronchi

• Alveoli

• Capillaries

Select the missing step in the respiratory process.

Mouth/Nose > Pharynx > ______ > Trachea > P, S, T Bronchi > Bronchioles

• Esophagus

• Larynx

• Alveoli

• Capillaries

Select the missing step in the respiratory process.

Mouth/Nose > Pharynx > Larynx > Trachea > P, S, T Bronchi > Bronchioles > ______

• Esophagus

• Larynx

• Alveoli

• Capillaries