Respiratory System Worksheet Questions (Grade 10)

An increase in the partial pressure of CO2 causes bronchioles to

• constrict.

• Dilate.

The chest wall is anatomically configured to contract inwardly, so that when the thorax is opened surgically its walls collapse.

• True

• False

What prevents the trachea from collapsing?

• The internal air pressure within the trachea

• The internal epithelium

• The surrounding muscles

• The C-shaped cartilaginous rings

Which is not part of the conducting portion of the respiratory system?

• Trachea

• Larynx

• Nasal cavity

• Alveoli

• Bronchi

An increase in dead space results in

• decreases in both alveolar and pulmonary ventilation.

• increases in both alveolar and pulmonary ventilation.

• a decrease in alveolar ventilation but no change in pulmonary ventilation.

• a decrease in alveolar ventilation but an increase in pulmonary ventilation.

• an increase in alveolar ventilation but a decrease in pulmonary ventilation.

In general, respiratory zone structures are lined with a thicker mucosa than conducting zone structures.

• True

• False

In addition to oxygen, hemoglobin also transports

• carbonic acid and bicarbonate ions.

• iron and albumin.

• carbon dioxide and hydrogen ions.

• calcium and carbon dioxide.

Tags

NGSS.HS-LS1-7

On each side of the chest, the ______ pleura lines the internal thoracic wall, and the ______ pleura tightly covers the lung.

• visceral; parietal

• respiratory; pleural

• thoracic; pulmonary

• fibrous; serous

• parietal; visceral

The most common cell making up the alveolar wall is the

• alveolar macrophage.

• septal cell.

• alveolar type I cell.

• alveolar type II cell.

• dust cell.

When central chemoreceptors detect a drop in the pH of the cerebrospinal fluid,

• medullary respiratory centers trigger an increase in rate and depth of breathing.

• pontine respiratory centers trigger a decrease in rate and depth of breathing.

• medullary respiratory centers trigger a decrease in rate and depth of breathing.

• the vagus and phrenic nerves stimulate decreased production of the catalyst carbonic anhydrase.

Tags

NGSS.HS-LS1-3