Respiratory System FINAL

In the __, gases exchange by diffusion along a gradient.

lungs

Exhalation is at rest and ___ during exercise.

passive, active

Under most conditions, the blood level of oxygen controls the respiratory rate.

false

The proper diagnosis of Anna’s illness is _.

pneumonia

Chronic bronchitis and emphysema are the two most common forms of chronic obstructive pulmonary disease (COPD).

True

Oxygen is carried in the blood mainly .

bound to hemoglobin within red blood cells

Select the exception about lung cancer.

The disease typically causes symptoms in its early stages.

During inhalation, the volume of the lungs increases and the air pressure inside the lungs ___.

decreases

Most carbon dioxide is transported to the lungs as _.

bicarbonate

The lungs of newborn babies with infant respiratory distress syndrome are not fully developed and lack _.

surfactant

In humans, all flu-causing viruses are variants of three major types.

True

Which of the following respiratory diseases should be treated with antibiotics?

All of the above

Why is the structural feature of the trachea significant?

To allow the esophagus to expand during swallowing.

What is the most likely cause of Linda’s symptoms?

Impaired gas exchange due to damaged alveoli.