Respiratory system Flashcards
what are we extracting from the air when we breathe
oxygen
what is it called when oxygen and nutrients react to create energy
cellular respiration
what is the equation of cellular respiration
glucose + oxygen = cardon dioxide + Energy +water
what are the two parts of the respiratory system
the respiratory tract
the lungs
what is the order of the respiratory tract
- the nasal passages
- the pharynx
- the larynx
- the trachea
- the bronchi (bronchioles)
how does the air get from the respiratory tract to the lungs
air exits the respiratory tract through the bronchioles and then goes into the lungs
what are the nasal passages
- they are the nostrils
- filters and warms
what are the pharynx
- passage way to the bronchi
- carries air to the lungs and food to the esophogus
what is the epiglottis
- flap of skin
- blocks the trachea
- so food it dosen’t go into respiratory tract
larynx
- upper section of the trachea
- vocal cords
- carries air
trachea
- made up of cartilage rings
- filters, warms the air
bronchi
- tubes branching of the trachea
- brings air to lungs
lungs
- organs
- ensures gas exchange
what happens when the volume increases in the lungs
decrease pressure
what happens when the volume decreases in the lungs
increase pressure
where does the air go when the pressure is high outside
it goes into the lungs
where the does the air go when the pressure is high in the lungs
air exits the lungs
what are the two states of respiration
- inhalation
- exhalation
what are the parts of the body that are responsible for inhalation and exhalation
lungs, ribs, diaphragm
what happens when someone inhales
- muscles and diaphragm contract
- rib cage rises
- diaphragm moves down
- lung volume increases, pressure decreases
- oxygen rushes into the lungs
what happens when someone exhales
- muscles and diaphragm relax
- rib cage descends
- diaphragm rises
- lung volume decreases, pressure increase
- carbon rushes out of the lungs
what is the process of cellular respiration
- air goes to our lungs
2. oxygen goes into our cells then carbon dioxide is created
where does gas exchange happen
in the alveoli
what are the alveoli
make up the lungs, made up of capillaries, responsible for gas exchange
what is diffusion
when substance goes into a region with low concentration from a high concentration area
what would happen to a person if their alveoli swelled up
if the alveoli would be swollen oxygen and CO2 would have trouble getting in and out
