respiratory system

The respiratory and cardiovascular systems have all of the following functions in common EXCEPT 1. transport of gases. 2. exchange of gases 3. maintenance of blood pH Entry field with correct answer 1 only 2 only 3 only 1 and 2 are correct 1, 2, and 3 are correct

Some structures in both the upper and lower respiratory tracts serve as sites for gas diffusion. Entry field with correct answer True False

The ________ cartilages of the larynx play the most important part in sound production.

Place the layers of the trachea in order from deep to superficial. Entry field with correct answer A. mucosa, submucosa, hyaline cartilage, adventitia B. submucosa, mucosa, hyaline cartilage, adventitia C. adventitia, hyaline cartilage, submucosa, mucosa D. adventitia, hyaline cartilage, mucosa, submucosa E. hyaline cartilage, submucosa, mucosa, adventitia

As the bronchial tree branches from bronchi to bronchioles, cartilage decreases while smooth muscle increases. Entry field with correct answer True False

Which of the following statements is NOT correct? Entry field with correct answer The lungs surround the mediastinum. Air normally fills the pleural cavity. The visceral pleura covers the lungs. The parietal pleura lines the thoracic cavity. The parietal and visceral pleura are separated by the pleural cavity.

A bronchopulmonary segment is directly supplied by a ______________________. Entry field with correct answer primary bronchus. secondary (lobar) bronchus. tertiary (segmental) bronchus. respiratory bronchiole. alveolar duct.

The respiratory membrane does not include the visceral and parietal pleura. Entry field with correct answer True False

The respiratory zone does NOT include any structures of the upper respiratory system. Entry field with correct answer True False

The internal structures of the external nose serve which of the following functions? 1. warming, moistening, and filtering incoming air 2. creating resonance 3. increasing gas exchange Entry field with correct answer 1 only 2 only 3 only 1 and 2 1, 2, and 3

The pharyngeal tonsil is found in the Entry field with correct answer nasopharynx. oropharynx. adenopharynx. laryngopharynx. hypopharynx.

Which of the following tissues lines the oropharynx? Entry field with correct answer pseudostratified ciliated columnar epithelium nonkeratinized stratified squamous epithelium simple squamous epithelium type I and type II alveolar cells none of these choices

Unlike capillaries in the rest of the body, pulmonary capillaries vasoconstrict when localized hypoxia occurs. Entry field with correct answer True False

The perpendicular plate of ethmoid and the vomer make up the Entry field with correct answer superior concha middle concha Hard palate nasal septum maxillary sinus

Surfactant lowers the surface tension of alveolar fluid; it is produced by Entry field with correct answer alveolar macrophages. fibroblasts. type I alveolar cells. type II alveolar cells. goblet cells.

A mechanical ventilator may aid directly in Entry field with correct answer pulmonary ventilation. external respiration. internal respiration. pulmonary ventilation and external respiration are correct. pulmonary ventilation, external respiration, and internal respiration are correct.

Decreased surfactant will affect alveolar surface tension to cause decreased pulmonary ventilation, but will have no effect on lung compliance. Entry field with correct answer True False

Which of the following is considered to be a modified respiratory movement? 1. coughing 2. Valsalva maneuver 3. costal breathing Entry field with correct answer 1 only 2 only 3 only 1 and 2 are correct 1, 2, and 3 are correct

As you sit quietly reading these questions, you use the diaphragm, external intercostal, and scalene muscles. Entry field with correct answer True False

Exhalation begins when the Entry field with correct answer elastic recoil of the chest wall and lungs occurs. internal intercostal muscles contract. inspiratory muscles relax. elastic recoil of the chest wall and lungs occurs and internal intercostal muscles contract. elastic recoil of the chest wall and lungs occurs, internal intercostal muscles contract, and inspiratory muscles relax.

Which is NOT true about surfactant? Entry field with correct answer it is a mixture of phospholipids and lipoproteins it is made as soon as the alveoli begin to develop it interferes with hydrogen bonding between water molecules it is made by septal cells in the alveoli

Which is the correct sequence of events for inhalation? 1. pressure of the atmosphere is greater than the pressure within the thorax 2. volume of the thorax increases and the pressure within the thorax decreases 3. the diaphragm contracts 4. the phrenic nerve fires Entry field with correct answer 4, 3, 2, 1 1, 2, 3, 4 4, 3, 1, 2 1, 4, 3, 2 2, 1, 3, 4

If you were to take 10 breaths/min and inhaled about 600 mL/breath, your minute ventilation rate would be Entry field with correct answer 60 mL/min. 6 L/min. 10 mL/min. 1 L/min. 10 L/min.

Spirometry testing of a young man shows that he has a total lung capacity of 6,000 mL. What is his vital capacity? Entry field with correct answer 500 mL. 1,200 mL. 2,400 mL. 3,100 mL. 4,800 mL.