Circulatory system -ppt exam revision

What is the role of the epiglottis during swallowing?

• It closes off the trachea to prevent food from entering.

• It contracts to push food downward into the esophagus.

• It opens the airway to allow breathing while swallowing.

• It helps in vocalization during swallowing.

Which structure serves as a common passageway for both air and food?

• Pharynx

• Trachea

• Larynx

• Esophagus

Which part of the respiratory system is labeled as number 1 in the diagram?

• Nasal cavity

• Trachea

• Larynx

• Bronchi

What is the component labeled as number 4 in the lower respiratory tract?

• Alveoli

• Bronchi

• Trachea

• Diaphragm

Identify the part labelled as number 6 in the diagram.

• Lungs

• Alveoli

• Bronchioles

• Pharynx

Which part of the respiratory tract is responsible for voice production?

• Nasal cavity

• Pharynx

• Larynx

• Trachea

What is the primary function of the nasal cavity in the respiratory system?

• To produce sound

• To filter, warm, and humidify air

• To exchange gases

• To pump blood

Which structure connects the pharynx to the lungs?

• Larynx

• Nasal cavity

• Trachea

• Bronchi

What is the role of the bronchi in the respiratory system?

• To filter air

• To exchange oxygen and carbon dioxide

• To carry air to the lungs

• To produce mucus

Which part of the body has projections that increase its internal surface area and contains hair and mucous to help filter the air?

• Epiglottis

• Bronchi

• Nasal cavity

• Diaphragm