Respiratory practice quiz
This is the primary gas exchange site.
Alveolus
These are triangular pieces of mostly hyaline cartilage located at the posterior and superior border of the cricoid cartilage.
Arytenoids cartilage
The point where the trachea divides into right and left primary bronchi is a ridge called
Carina
The nose connects with the pharynx through the
Choanae
Which of the below tissues provides the functions of the inner layer of the conducting organs?
Ciliated pseudostratified columnar epithelium with goblet cells
The conducting zone's role is to
Clean air of debris. Conduct air into the lungs. Add water to air. Warm air.
When blood pH drops then the amount of oxyhemoglobin ______________ and oxygen delivery to the tissue cells ___________.
Decreases, increases
Which is the dominant method of carbon dioxide transport?
Dissolved in plasma as bicarbonate ions
Which of the following is NOT a factor that the rate of pulmonary and systemic gas exchange depends on?
E. Force of contraction of diaphragm
This structure prevents food or water from entering the trachea.
Epiglottis
The opening to the pharynx from the mouth is called
Fauces
This is the sum of the residual and the expiratory reserve volume.
Functional residual capacity
This means the lungs and the chest wall expand easily.
High compliance
Which of the below tissues maintains open airways in the lower respiratory system?
Hyaline cartilage
Exhalation begins when
Inspiratory muscles relax
This is direction of diffusion of gasses at the alveoli of the lungs.
Oxygen into blood, carbon dioxide out of blood
This is direction of diffusion of gases at capillaries near systemic cells.
Oxygen out of blood, carbon dioxide into blood
During swallowing, which structures rises?
Pharynx
Which of the following is a passageway for air, food and water?
Pharynx
The conducting airways with the air that does not undergo respiratory exchange are known as the
Respiratory dead space
Which is a factor that does NOT affect hemoglobin's affinity for oxygen?
Respiratory rate
Which of the below tissues forms the exchange surfaces of the alveolus?
Simple squamous epithelium
Pitch is controlled by
Tension of the vocal chords
This is located anterior to the oesophagus and carries air to the bronchi.
Trachea
Which of the following is not part of the upper respiratory system?
Trachea
These are cells of the alveoli that produces surfactant.
Type II alveolar cells