Respiratory System and Special Senses Flashcards
What are the organs of the respiratory system?
- nose
- pharynx
- larynx
- trachea
- bronchial tree
- lungs
What is the nose made of?
bones, cartilage, skin
What prevents particles from entering the nose?
small hairs (cilia)
Where is the pharynx?
back of the throat
What is the larynx?
voice box
What is the epiglottis?
flap that diverts throat contents to the trachea or esophagus
What is the trachea?
main airway that extends from larynx and branches into bronchi
- lined with cilia
- windpipe
What’s in the lungs?
bronchia, alveoli, blood vessels
Which lung is larger?
right lung
What are bronchi?
2 large tubes that carry air from the windpipe to the lungs
What is alveoli?
air sacs where oxygen and carbon dioxide exchange
What surrounds the lungs?
pleura (membrane)
What are causes of altered breathing patterns?
- coughing
- sneezing
- laughing
- crying
- hiccups
- yawning
- speaking
What is the function of the respiratory system?
move air in and out of lungs
- respiratory and cardiovascular systems work together to deliver oxygen and remove carbon dioxide
What is external respiration? Internal respiration?
external: exchange of oxygen within lungs
internal: exchange of oxygen with hemoglobin of a red blood cell
Why are respiratory volumes measured?
to assess health of respiratory system
What is tidal volume?
amount of air that moves in or out of the lungs during a normal breath
What is inspiratory reserve volume?
amount of air that can be forcefully inhaled following a normal inhalation
What is expiratory reserve volume?
amount of air that can be forcefully exhaled following a normal exhalation
What is residual volume?
volume of air that always remains in the lungs even after a forceful exhalation
What is vital capacity?
amount of air that can be forcefully exhaled after the deepest inhalation possible
What is total lung capacity?
total amount of air the lungs can hold
What is spirometry?
pulmonary function testing
- measures various lung functions
What is spirometry used for?
to diagnose asthma or chronic obstructive pulmonary disease (COPD)