Respiratory System Flashcards
What does the body inhale and exhale?
Carbon dioxide
What is the function of the Respiratory system?
Transport air into the lungs and to facilitate the diffusion of O2 into the bloodstream.
What is 1 breath?
1 inhale, and 1 exhale
What does the upper respiratory system do?
Provide a passageway for air to enter and leave the body.
It also warms and humidifies and cleans the inhaled air and guides it to the lower airway.
The upper air ways consist of the nasal cavities, the pharynx, larynx
What does the Lower Respiratory system do?
It extends from just below the vocal cords to the bronchioles
The lower airways are branching hollow passageways that conduct air to and from the alveoli
The lungs are where the gas exchange takes place
How many lobes does the Rt lung have?
3 lobes
How many lungs does the Rt lung have?
2 lobes
How much O2 does room air contain?
20%
What are the parts of the upper respiratory system?
1) Mouth, nose, nasal cavity
2) Pharynx
3) Larynx
What are the parts of the lower respiratory system?
1) Trachea
2) Bronchi
3) Bronchioles
4) Alveoli
5) Diaphragm
What does the mouth, nose, and nasal cavity do for the respiratory system?
Function is it filters, warms and humidifies the incoming air.
What does the pharynx do for the respiratory system?
Here the throat divides into the trachea (windpipe) and esophagus (food pipe)
*There is a flap of cartilage called the epiglottis which prevents food from entering the trachea
What is larynx?
It is also known as the voice box this is where sound is generated. It also helps protect the trachea by producing a strong cough reflex.
What does the trachea do for the respiratory system?
This tube carries air from the throat to the lungs. It’s 20-25mm in diameter and it is 10-16cm in length. The inner membrane of the trachea is covered in tiny hairs called cilia. These catch particles of dust that can be removed through coughing.
What is aspirate?
Food went down the trachea. When food gets in the lungs it can start to grow bacteria. (This is how pneumonia is caused)