Human Respiratory

Which of the following is not part of the upper respiratory system?

• nose
• oral cavity
• pharynx
• trachea

This is located anterior to the esophagus and carries air to the bronchi.

• trachea
• larynx
• nasopharynx
• pharynx

This is the primary gas exchange site.

• trachea
• bronchiole
• nasal sinuses
• alveolus

This is the sum of the residual and the expiratory reserve volume.

• total lung capacity
• functional residual capacity
• inspiratory capacity
• vital capacity

For air to enter the lungs during inhalation

• the pressure inside the lungs must become lower than the atmospheric pressure.
• the pressure inside the lungs must be higher than the atmospheric pressure.
• the pressure inside the lungs must be equal to the atmospheric pressure.
• the size of the lungs must be decreased.