Respiratory system

Which of the following structures is not part of the bronchial tree?

Alveoli Bronchi Terminal bronchioles Respiratory bronchioles Alveoli

The pressure difference between the intra-alveolar and intra-plural pressures is called

Atmospheric pressure Pulmonary pressure Negative pressure Transpulmonary pressure Transpulmonary pressure

Which of the following are structural features of the trachea

C shaped Cartlidge Smooth muscle fibers Celia All of the above All of the above

When ventilation is not sufficient, which of the following occurs?

Capillary constricts Capillary dilates Parietal pressure of oxygen in the affected Alviola's increases Bronchioles dilate Capillary constricts

A decrease in volume leads to a what in pressure

Decrease in Equalization of Increase in Zero Increase in

What is the function of the conchae in the nasal cavity?

Increase surface area Exchange gases Maintain surface tension Maintain air pressure Increase surface area

Gas moves from an area of ________ partial pressure to an area of ________ partial pressure.

Low to high Low to low Hi to High High to low High to low

Which of the following structures separates the lung into lobes

Mediastinum Fissure Route Pleura Fissure

The fauces connects which of the following structures to the oropharynx?

Nasopharynx Laryngopharynx Nasal cavity Oral cavity Oral cavity

Which of the following anatomical structures is not part of the conducting zone?

Pharynx Nasal cavity Alveoli Bronchi Alveoli

The blank circulation picks up oxygen for cellular use, and drops off carbon dioxide for removal from the body

Pulmonary circulation

Which of the following processes does atmospheric pressure play a role?

Pulmonary ventilation Production of pulmonary surfactant Resistance Surface tension Pulmonary ventilation

Which of the following prevents the alveoli from collapsing

Residual volume Tidal volume Expiratory reserve volume Inspiratory reserve volume Residual volume

Gas flow decreases as ________ increases.

Resistance Pressure Airway diameter Friction Resistance

Which of the following factors play a role in the oxygen, hemoglobin saturation/disassociation curve

Temperature PH BPG All of the above All of the above

Contraction of the external intercostal muscles causes which of the following to occur

The diaphragm moves downward Rib cage is compressed Thoracic cavity, volume decreases Ribs and sternum move upward Ribs and sternum move upward

What is the role of Avalor macrophages?

To secrete pulmonary surfactant To secrete antimicrobial proteins To remove pathogens and debris To facilitate gas exchange To remove pathogen and debris

The Laura, that's around the lungs consist of two layers the

Visceral and parietal pleura Mediastinum pleura and parietal Visceral and mediastinum pleura None Visceral and parietal pleura

Gas exchange that occurs at the level of the tissue is called

internal respiration

The section of the lung that receives its own tertiary bronchus is called the

Bronco pulmonary segment Pulmonary lobule Enter pulmonary segment Respiratory segment Bronchopulmonary segment