What is the normal respiratory rate for a healthy adult?

Correct answer: 12 to 18 breaths per minute

Explanation

This question assesses the knowledge of the normal range for a vital sign, the respiratory rate, in adults, and how it differs from that in children.

Other questions

Question 1

What are the two functional divisions of the respiratory system?

Question 2

Which structure is a cartilaginous formation that forms the lateral side of each nostril opening?

Question 3

What is the primary function of the conchae and meatuses in the nasal cavity?

Question 4

Which part of the pharynx serves only as an airway and is flanked by the conchae of the nasal cavity?

Question 5

What is the composition of the fibroelastic membrane of the trachea?

Question 6

What is the primary function of pulmonary surfactant secreted by type II alveolar cells?

Question 7

What is the approximate thickness of the respiratory membrane, which allows for the simple diffusion of gases?

Question 8

Which lung is shorter and wider and contains three lobes?

Question 9

What is the effect of the parasympathetic nervous system on the airways?

Question 10

According to Boyle's law, what is the relationship between the volume and pressure of a gas at a constant temperature?

Question 11

What is the transpulmonary pressure?

Question 12

Which respiratory volume is defined as the amount of air that normally enters the lungs during quiet breathing, and is approximately 500 milliliters?

Question 13

What is the total lung capacity (TLC) for men, which represents the total amount of air a person can hold in the lungs after a forceful inhalation?

Question 15

Which respiratory center in the brain is involved in maintaining a constant breathing rhythm by stimulating the diaphragm and intercostal muscles to contract?

Question 16

What is the primary factor that stimulates the medulla oblongata and pons to produce respiration?

Question 17

According to Dalton's law, how is the total pressure of a gas mixture determined?

Question 18

What is the approximate partial pressure of oxygen in alveolar air?

Question 19

How does the solubility of carbon dioxide in blood compare to the solubility of oxygen?

Question 20

What is the term for the gas exchange that occurs at the level of body tissues?

Question 21

Approximately what percentage of total oxygen is transported in the bloodstream dissolved directly in the blood plasma?

Question 22

What is the name for the form of hemoglobin when it has oxygen bound to it?

Question 23

According to the Bohr effect, how does a lower, more acidic pH affect the oxygen-hemoglobin dissociation curve?

Question 24

What is the primary mechanism for transporting carbon dioxide in the blood?

Question 25

What is the name of the phenomenon where bicarbonate ions leave erythrocytes in exchange for chloride ions?

Question 26

What is the definition of hyperpnea?

Question 27

At what altitude does acute mountain sickness (AMS) typically begin to occur?

Question 28

What is the process of acclimatization to high altitude?

Question 29

At approximately what week of gestation have enough alveoli matured for a prematurely born baby to usually be able to breathe on its own?

Question 30

What is the underlying cause of respiratory distress syndrome (RDS) in prematurely born infants?

Question 31

What is the collective term for the multiple-branched bronchi within the lungs?

Question 32

What type of epithelium lines the conchae, meatuses, and paranasal sinuses?

Question 33

What is the role of the trachealis muscle?

Question 34

What is the term for the visceral and parietal layers that enclose the lungs?

Question 35

What is the consequence of the intrapleural pressure always being lower than the intra-alveolar pressure?

Question 36

What is the term for the volume of air left in the lungs after you exhale as much air as possible?

Question 37

Which combination of respiratory volumes makes up the vital capacity (VC)?

Question 38

What is the apneustic center's role in controlling respiration?

Question 39

Peripheral chemoreceptors in the aortic arch and carotid arteries stimulate an increase in respiratory activity when blood oxygen levels drop to what level?

Question 40

In the context of gas exchange, what is perfusion?

Question 41

How many oxygen molecules can a single saturated hemoglobin molecule transport?

Question 42

What is the typical hemoglobin saturation range in a healthy individual?

Question 43

Why does fetal hemoglobin have a greater affinity for oxygen than adult hemoglobin?

Question 44

Approximately what percentage of carbon dioxide is transported in the blood bound to hemoglobin as carbaminohemoglobin?

Question 45

What is the Haldane effect?

Question 46

What happens to the hemoglobin saturation level when moving from sea level to an altitude of 19,000 feet?

Question 47

What is the name of the dome-shaped structure composed of tissue that bulges from the foregut around week 4 of gestation and develops into the lungs?

Question 48

When do fetal breathing movements typically begin?

Question 49

What is the primary physical force that drives the movement of air into and out of the lungs?

Question 50

Which condition is a chronic disease characterized by inflammation, edema, and bronchospasms of the airway?