Which property of the alveoli enables the lungs to absorb a great amount of oxygen?
*a moist lining*
*dense with blood vessels*
*large surface area*
large surface area
TRUE/FALSE: When you take in air, your chest cavity expands.
TRUE
In what specific blood vessel does gas exchange occur?
capillary
TRUE/FALSE: The less oxygen you need, the faster you will breathe.
FALSE
The nasal passages are lined with hairlike structures called cilia. What is the main function of these cilia?
help remove trapped particles like dust and bacteria
When you have a sore throat, which respiratory tract is affected?
*pharynx, larynx, nasal cavity, trachea*
pharynx
What is the other term for trachea?
windpipe
Why do small kids like toddlers have high pitch voices?
because their vocal cords are short and their voice box/ larynx is small
Pneumonia is an infection which allows pus to build up in the __________.
*bronchus, alveoli, trachea, bronchiole*
alveoli
What structure prevents food from entering the respiratory tract (trachea) whenever we swallow?
epiglottis
The term COVID in COVID-19 means ___(complete term)___.
coronavirus disease
What are the major organs of the respiratory system?
lungs
Where are vocal cords found?
larynx/ voice box
What structures are pointed by the arrows?
bronchioles
Red blood cells have a special protein where oxygen molecules from the alveoli of the lungs stick/ attach to so that it can be transported to the body cells. What is this protein called?
hemoglobin