The Respiratory System

When you breathe, your lungs take in air to​ (a)   the blood and remove​ (b)    from the blood.

• oxygenate
• carbon dioxide
• uric acid
• hydrogen
• helium

These air sacs in the lungs are covered with capillaries, where gas exchange takes place.

• bronchi

• lungs

• oxygen

• alveoli

• bronchioles

The flap of tissue that covers the opening to the trachea during swallowing food or liquids.

• Pharynx

• Trachea

• Epiglottis

• Uvula

• cardiac sphincter

Trace the flow of air from outside the body to inside the lungs.

• nasal cavity

• pharynx

• trachea

• larynx

• bronchi

Which body function is made possible by the fibrous bands stretched across the larynx?

• swallowing

• breathing

• diffusion

• speech

• gas exchange

A chamber behind the nose and mouth that leads to the trachea

• pharynx
• trachea
• epiglottis
• larynx
• cranial sinuses

A cavity within a bone or other tissue, especially one in the bones of the face or skull connecting with the nasal cavities.

• Sinus

• Nose

• Pharynx

• Larynx

• Oropharynx

Air inhaled into the trachea is diverted into either the left or right lung through which tubes?

• bronchioles

• bronchi

• esophagus

• alveoli

• epiglottis

Olfactory receptors are located in the mucosa of the nose. What are these receptors used for?

• sight

• smell

• touch

• taste

• hearing

Which part of the Respiratory System plays a major role in speech?

• nose

• pharynx

• larynx

• trachea

• epiglottis