$$487 \times 14 = 6,818 ml/$$min

Question 1

Which tonsil is located in the nasopharynx?

Accepted Answer

Pharyngeal tonsil

Question 2

Which branch forms the bronchopulmonary segments in the lungs?

Accepted Answer

Segmental bronchus

Question 3

What force keeps the lungs in an enlarged state under normal conditions?

Accepted Answer

Surface tension between parietal and visceral pleura

Question 4

What would be the result if the pulmonary and intrapleural pressures became equal?

Accepted Answer

Lungs would collapse

Question 5

Which law explains the relationship between pressure and volume in the lungs?

Accepted Answer

Boyle's law

Question 6

During an asthma attack, what happens to airway resistance and airflow?

Accepted Answer

Resistance increases and the air flow decreases

Question 7

Pulmonary surfactant decreases the ________ in the alveoli.

Accepted Answer

Surface tension

Question 8

Which is NOT one of the three main factors that influence external respiration?

Accepted Answer

Gas solubilities

Question 9

According to the equation $$F = \frac{\Delta P}{R}$$, which statement is true?

Accepted Answer

If resistance increases, flow decreases

Question 10

A person has a breathing rate of 14 per minute. Their tidal volume is 487 ml. What is their minute ventilation?

Accepted Answer

$$487 	imes 14 = 6,818 ml/$$min

Question 11

Why is FEV$$_1 ($$forced expiratory volume in one second) useful in diagnosing obstructive lung diseases like asthma?

Accepted Answer

It shows how much air can be exhaled in the first second, which is reduced in asthma due to airway constriction

Question 12

A patient is receiving oxygen by mask, but the bronchioles leading to the oxygen-enriched alveoli are constricted. What is the likely effect?

Accepted Answer

Reduced oxygen delivery to those alveoli

Question 13

The pressure exerted by each individual gas in a mixture is called its ________.

Accepted Answer

Partial pressure

Question 14

The majority of carbon dioxide in the blood is transported as:

Accepted Answer

Bicarbonate ions in the plasma

Question 15

The chloride shift refers to:

Accepted Answer

Chloride ions moving into or out of the red blood cell

Question 16

A patient arrives breathing rapidly. Her blood PCO$$_2 is 26 mm Hg $$and pH is 7.48. Is she suffering from hyperventilation or hyperpnea?

Accepted Answer

Hyperventilation

Question 17

Damage to which of the following would most likely result in cessation of breathing?

Accepted Answer

Ventral respiratory group

Question 18

Which law explains the ever-changing situation of gases in the lungs and capillaries, considering pressures, temperature, and solubility?

Accepted Answer

Henry's law

Question 19

Where in the lungs would constriction occur during an asthma attack?

Accepted Answer

Bronchiole

Question 20

Which of the following will increase hemoglobin’s affinity for oxygen?

Accepted Answer

Increase in pH

Respiratory System Review: Anatomy, Physiology, and Clinical Concepts

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