Respiratory System Part 1

What structures are included in the upper respiratory tract?

• Alveoli, bronchioles, and alveolar ducts

• Trachea, bronchi, and lungs

• Pleura, pleural cavity, and diaphragm

• Nose, nasopharynx, oropharynx, laryngopharynx, and larynx

What is the primary function of the nasal cavity's conchae?

• Producing sound

• Warming and moistening air

• Filtering out dust with cilia

• Exchanging gases

Which part of the respiratory system is commonly known as the throat?

• Trachea

• Esophagus

• Larynx

• Pharynx

What prevents food and liquids from entering the trachea?

• Nasal hairs

• Vocal cords

• Epiglottis

• Vestibular folds

Where does gas exchange primarily occur?

• Larynx

• Trachea

• Alveoli

• Bronchioles

What substance helps reduce surface tension within the alveoli?

• Saliva

• Pleural fluid

• Surfactant

• Mucus

How many lobes does the right lung have?

• Three

• Four

• One

• Two

What is the name of the space between the visceral and parietal pleurae?

• Alveolar sac

• Pleural cavity

• Mediastinum

• Bronchial tube

Which structure separates the nasal cavity into two halves?

• Palate

• Septum

• Conchae

• Pharynx

What is the role of the cilia located just inside the nostrils?

• Moistening the air

• Filtering out dust and large foreign particles

• Producing mucus

• Warming the air