Soc 17-The Structure Of The Respiratory System Flashcards
What makes up the respiratory system?
Nose - mouth - throat - voice box - windpipe - lungs - blood vessels
Why do we need the respiratory system?
-get oxygen into the body
-remove CO2 from the body
-in sport/exercising the respiratory and cardiovascular system must work closely together to keep the body supplied with oxygen
Breathing in (inspiration)?
20% oxygen + 0.4% carbon dioxide
Breathing out (exhaliation)?
16% oxygen and 4% carbon dioxide
What is vital capacity?
This is the greatest amount of air that can be passed into and out of the lungs by the most forceful inspiration and expiration
What happenes to your diaphragm when you inhale?
The diaphragm contracts, tightens and lowers
What happenes to your diaphragm when you exhale?
The diaphragm relaxes, softens and moves upwards
What happens when you inhale? (hint-intercoastal muscles)
When breathing in (inhaling) the intercoastal muscles (between the ribs) contract and lift the chest upwards and outwards while the diaphragm tightens and lowers.
Respiration?
Respiration: the movement of air from outside the body into
the cells within tissues.
Diaphragm?
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?
Trachea: the tube that takes air into the chest, also known as the windpipe.
Bronchi (bronchus) and bronchioles?
Bronchus (pl. bronchi): tube along which air passes from the trachea into the lungs.
Bronchioles: smaller branches coming off the bronchi.
Alveoli?
Alveoli: tiny sacs at the end of the bronchioles, where gas exchange takes place.
Haemoglobin?
Haemoglobin: a type of protein found in every red blood cell.
Gaseous exchange?
Gaseous exchange: the delivery of oxygen from the lungs to the bloodstream and the removal of carbon dioxide from the tissues.
