Respiratory System Flashcards
What pair of organs are required for breathing?
Lungs
What structure brings air from the nose/mouth towards the lungs?
Trachea
Which structure in the throat contains the voice box?
Larynx
Which structure splits to bring air towards both lungs?
Bronchi
What name is given to the small branch-like structures that carry air within the lungs?
Bronchioles
In which structure does gas exchange take place?
Alveoli
The dome shaped muscle that expands the chest cavity
Diaphragm
The muscles that expand the ribcage
Intercostal
Which gas moves from the alveoli to the bloodstream?
Oxygen (O2)
Which gas moves from the bloodstream to the alveoli?
Carbon Dioxide (CO2)
What happens to the muscles during inhalation?
Contract
What happens to the muscles during exhalation?
Relax
Which structure help keep debris and pathogens away from the lungs?
Cilia
What are the 4 adaptations of the alveoli?
Good Blood Supply, Large Surface Area, Moist, Thin Walls
How do gases move during gas exchange?
Diffusion