Flashcards in Respiratory System** Deck (69)
Smallest conducting respiratory passageways
Separates the oral and nasal cavities
Major nerve that stimulates the diaphragm
Food passageway posterior to the trachea
Closes off the larynx during swallowing
Actual site of gas exchange
Pleural layer covering the thorax walls
Pleural layer covering the lungs
Lumen of the larynx
Fleshy lobes in the nasal cavity which increase its surface area
Pressure of air outside the body
What is the general function of the respiratory system?
Transport gases to and from the circulatory system
Breakdown of glucose in the body using oxygen
How many lobes does the right lung have? Left?
A double membrane surrounding the lungs; secretes a mucus that decreases friction
Why are ribs expandable?
They aren't completely ossified
What are the 7 openings in the throat cavity?
1 to esophagus, 1 to larynx, 1 to mouth, 2 nasal passages, 2 eustachian tubes
What are the functions of the nostrils?
Filter out dust, warm and moisten air
What are the 3 actions to inspiration?
Ribs expand, diaphragm down, pressure decreases
What are the 3 actions to expiration?
Ribs contract, diaphragm up, pressure increases
What is the regular breathing rate?
What controls your breathing rate?
How does high levels of carbon dioxide affect your breathing rate?
Causes you to inhale and exhale faster
What is the respiration flow?
Nose/throat, larynx, trachea, bronchi, bronchioles, alveoli, blood, cells
Tiny sacs where oxygen and carbon dioxide are exchanged
Maximum amount of air that the lungs can hold
Maximum lung capacity
Maximum amount of air that a person can inhale/exhale
Vital lung capacity