structure of the respiratory system Flashcards
what does the respiratory system mediate
uptake of oxygen needed for metabolism and the release of carbon dioxide back into the atmosphere
what is the waste product of the human body relating to the respiratory system
CO2 (carbon dioxide)
what is the process of bringing oxygen to the lungs called
inhaling and exhaling
what is the process of exchanging gas oxygen with the gas carbon dioxide
ventilation
in the respiratory system where does air enter
the nasal openings
in the respiratory system what happens after air enters the nasal openings
moves to the nasal cavity
in the respiratory system what happens after air enters the nasal openings and moves to the nasal cavity
travels past the pharynx (throat)
in the respiratory system what happens after air enters the nasal openings and moves to the nasal cavity and travels past the pharynx (throat)
goes into the trachea
what is the trachea
large tube reinforced by cartilage rings that keeps it from collapsing
in the respiratory system what happens after air enters the nasal openings and moves to the nasal cavity and travels past the pharynx (throat) and goes into the trachea
air continues to the left primary and right bronchi — first division of the trachea
in the respiratory system what happens after air enters the nasal openings and moves to the nasal cavity and travels past the pharynx (throat) goes into the trachea and continues to the left primary and right bronchi
air in the right bronchi continues to the right lung and air in the left bronchi goes to the left lung
what does the right and left bronchi subdivide into
smaller tubes called bronchioles
where do bronchioles terminate
alveoli
what does the alveoli look like
single celled thin wall structures that look like clusters of grapes
what is the alveoli the site of
site for gas exchange
