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Pulmonary System Anatomy

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Questions and Answers

What is the primary function of ventilation in the lungs?

To facilitate the exchange of oxygen and carbon dioxide between the alveoli and capillaries

To move air in and out of the lungs, following Boyle's law (correct)

To regulate the pH levels in the blood

To control the movement of blood through the pulmonary circulation

What is the normal V/Q ratio in the lungs?

0.5

0.8 (correct)

1.0

1.2

Which of the following respiratory zones has the greatest perfusion?

Upper lobe of the lungs

Apex of the lungs

Middle lobe of the lungs

Base of the lungs (correct)

What is the term for the forced expiratory volume in one second?

FEV1 Signup and view all the answers

What is the difference between internal and external respiration?

Internal respiration occurs in the tissues, while external respiration occurs in the lungs Signup and view all the answers

What is the function of the vibrissae in the nose?

To filter the air Signup and view all the answers

What is the primary function of the pharynx?

To serve as a conduit for air and food Signup and view all the answers

Which of the following is NOT a type of pharynx?

Pulmonary pharynx Signup and view all the answers

What is the term for the diffusion of oxygen and carbon dioxide from higher to lower concentration?

Simple diffusion Signup and view all the answers

Which of the following blood vessels carries oxygenated blood?

Arteries Signup and view all the answers