SOC 17: The Structure Of The Respiratory System Flashcards
What does the respiratory system include?
The respiratory system includes the nose, mouth, throat, voice box, windpipe, lungs, and blood vessels.
Why do we need our respiratory system?
- To get oxygen into the body
- To remove carbon dioxide from the body
- The cardio respiratory system must work closely together to keep the body supplied with oxygen.
What is inspiration?
Breathing in 20% oxygen + 0.4% Carbon dioxide
What is exhalation?
Breathing out 16% Oxygen + 4% Carbon dioxide
What is vital capacity?
The greatest amount of air that can be passed into and out of the lungs by the most forceful inspiration and expiration.
What is tidal volume?
The amount of air inspired and expired with each breath.
What happens to your tidal volume when your breathing rate increases?
Breathing rate increases, breathing depth increases.
This means that more air is inhaled and exhaled with each breath.
Respiration
the movement of air from outside the body into the cells within tissues.
Diaphragm
the primary muscle used in the process of inspiration, or inhalation. A dome-shaped sheet of muscle that separates the chest from the rest of the body cavity.
Trachea
the tube that takes air into the chest, also known as the windpipe.
Bronchus (pl. bronchi)
tube along which air passes from the trachea into the lungs.
Bronchioles
smaller branches coming off the bronchi.
Alveoli
tiny sacs at the end of the bronchioles, where gas exchange takes place.
Haemoglobin
a type of protein found in every red blood cell.
Gaseous exchange
the delivery of oxygen from the lungs to the bloodstream and the removal of carbon dioxide from the tissues.
