Respiratory System Flashcards
What are 2 major functions of the respiratory system?
1) Taking in oxygen for your body’s cells to use
2) Removing carbon dioxide from the body
What is the trachea?
Main airway to lungs
What is the pharynx?
The throat
Where does oxygen enter the bloodstream?
Alveoli
What is the larynx?
Voice box
What is the epiglottis?
A flap over the larynx to block food from entering the trachea
What are alveoli?
Tiny air sacs in the lungs
Where is the trachea located?
Below the larynx, connecting to the bronchi
Where is the pharynx located?
From the nasal and oral cavities to the larynx. Back of the mouth
Where is the larynx located?
Between the pharynx and windpipe
Where are the lungs located?
In the thoracic cavity
Where are bronchi located?
In the lungs
Where are alveoli located?
At the end of bronchioles
Where are cillia and what is their function?
Cillia are in the trachea of non-smokers and they sweep mucus and debris to the pharynx to be swallowed
What is the function of the pharynx?
Carries air, food, and fluid down from the nose and mouth
What is the function of the larynx?
Voice, and contains epiglottis to stop food from entering windpipe
What is the function of the lungs?
Gas exchange
What is the function of bronchi?
Bring air in and out of lungs
What is the function of the alveoli?
The site of gas exchange between blood and the atmosphere
What does the diaphragm do when you inhale?
Contracts and moves downwards
What does the rib cage do when you inhale?
Move upwards and outwards
What part of ventilation requires ATP?
Inhalation
What does the diaphragm do when you exhale?
Relaxes, and moves upwards
What does the rib cage do when you exhale?
Moves downwards and inwards
