The Structure & Functions of the Cardio-Respiratory System (OCR GCSE Physical Education): Flashcards
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Practise the cards
13 cards from this deck
Nasal cavity: 3 functions
Nasal cavity: 3 functions
Filters (by hairs), warms, and humidifies air
When does air enter through mouth?
When does air enter through mouth?
During intense physical activity
Pharynx serves which systems
Pharynx serves which systems
Both respiratory and digestive systems
What larynx contains
What larynx contains
Vocal cords
Larynx: 2 functions
Larynx: 2 functions
Producing sound and passageway for air
What trachea connects
What trachea connects
Larynx to bronchi
What lines the trachea?
What lines the trachea?
Cilia and mucus
Trachea lining purpose
Trachea lining purpose
Trap and expel dust and other particles
How many bronchi & their destination
How many bronchi & their destination
Two bronchi, each leading to one lung
What are bronchioles
What are bronchioles
Smaller air passages spreading throughout lungs
What are alveoli
What are alveoli
Tiny air sacs at end of bronchioles
Alveoli structure
Alveoli structure
Extremely thin walls surrounded by capillaries
Gas exchange at alveoli
Gas exchange at alveoli
O2 into blood, CO2 into alveoli to be exhaled