Structures and Functions
Respiration is the process of taking in............. and releasing .............
oxygen and co2
What is the name for our windpipe?
Trachea
What is the process of taking in air called?
Inhalation
What is the flap in the pharynx (throat) called?
True or False, our right lung is bigger than our left lung?
True
What is the function of the nose and mouth in the respiratory system?
Taking in warm air, filtering air
What is the trachea covered in?
What is the process of breathing out air called?
Exhalation
What is the function of the epiglottis?
covers the windpipe (trachea) when we swallow food
Why is our right lung bigger than our left lung?
Left lung is smaller to make room for the heart.
What is the name for the throat?
Pharynx
What are the 2 tubes that split off from the trachea called?
Bronchi
When we inhale, what does our diaphragm do? (does it go up or down)
contracts, moves downward to allow for our lungs to expand
How does the nose prevent dirt and germs from getting into the body?
tiny hairs that act as filters, and mucus that traps germs
What is one thing that can happen as a result of smoking?
lung cancer, emphysema
What is the function of the throat?
transport food, water, and air
The tiny tubes that split off of the bronchi are called?
Bronchioles
When we exhale, what does our diaphragm do? (does it move upward or downward)
Relaxes, goes upward
The epiglottis .............. when we breathe, and .......... when we eat or drink
closes, opens
Why do we breathe harder when we exercise?
to allow for more oxygen to enter our bloodstream
What is our voicebox called?
Larynx
Tiny air sacs in the lungs are called?
Alveoli
Function of the alveoli
gas exchange... oxygen in, Co2 out
What is the muscle called under our lungs that contracts and relaxes when we breathe?
Diaphragm
What part of our body controls our breathing? Hint: think nervous system
Brain