SPS113: REVISION 8 (GROUP)

Which of the following is a function of the respiratory system?

• Gas exchange

• Absorption of nutrients

• Transport of oxygen

• Structural support

Which of the following is NOT a function of the nose?

• A passageway for air movement.

• As the initiator of the cough reflex.

• Warming and humidifying the air.

• Cleansing the air.

Which of the following organs or structures is (are) uppermost in the respiratory system?

• Trachea

• Pharynx

• Larynx

• Bronchi

What is the largest of the laryngeal cartilages that form most of the anterior and lateral walls of the larynx?

• Arytenoid cartilage

• Epiglottis

• Cricoid cartilage

• Thyroid cartilage

Which of the following is a passageway for air, food and water?

• Nasal cavity

• Paranasal sinuses

• Pharynx

• Trachea

Gas exchange takes place in the

• pharynx.

• larynx.

• trachea.

• alveoli.

Most of the carbon dioxide transported by the blood is

• bound to hemoglobin.

• converted to bicarbonate ions and transported in plasma.

• bound to the same protein as carbon dioxide.

• dissolve in plasma.

Which is direction of diffusion of gasses at the level alveoli of the lungs?

• Oxygen into blood, carbon dioxide into blood.

• Oxygen out of blood, carbon dioxide into blood.

• Oxygen into blood, carbon dioxide out of blood.

• Oxygen out of blood, carbon dioxide out of blood.

The principal muscles responsible for the inspiration phase of pulmonary ventilation are

• diaphragm and internal intercostal muscles.

• scalenes and internal intercostal muscles.

• internal and external intercostal muscles.

• diaphragm and external intercostal muscles.

Which is NOT a paranasal sinus?

• Palatine sinus

• Ethmoid sinus

• Sphenoid sinus

• Frontal sinus