Please enable JavaScript.
Coggle requires JavaScript to display documents.
RESPIRATORY SYSTEMS - Coggle Diagram
RESPIRATORY SYSTEMS
AIRWAYS
-
-
-
-
-
-
-
-
-
Key role is to filter, warm and moisten inhaled air.
The Pharynx
-
-
-
EPIGOLTTIS DOES NOT FUNCTION PROPERLY IF FOOD WAS TO GO THROUGH WRONG HOLE WHICH IS WHY COUGHING IS CAUSED
-
-
-
THE BRONCHIOLES
-
-
-
-
-
-
Gas exchange begins in the Respiratory bronchioles,
-
-
-
-
-
THE MOUTH
-
-
-
EG IN A DRY PLACE SUCH AS DESERT YOU WOULD BREATHE THROUGH MOUTH AS IT WOULD CAUSE DISCOMFORT BREATHING THROUGH NOSE
-
The human respiratory system is adapted to allow air to pass in and out of the body, and for efficient gas exchange to happen.
The trachea branches into two bronchi (one to each lung). Pleural membranes surround each lung. Cartilage rings in the walls of the trachea help to keep it open.
The bronchi split into smaller and smaller tubes called bronchioles. These end in microscopic air sacs called alveoli. There is a muscular diaphragm below the lungs.
GAS EXCHANGE
-
The ribs, intercostal muscles and diaphragm all play important roles in ventilation (breathing).
-
the internal intercostal muscles relax and the external intercostal muscles contract, pulling the ribcage upwards and outwards
the diaphragm contracts, pulling downwards
-
-
During gas exchange, oxygen passes into the blood from the air in the alveoli, and carbon dioxide passes out of the blood and into the alveoli. This happens because of diffusion.
EXHALE
-
the external intercostal muscles relax and the internal intercostal muscles contract, pulling the ribcage downwards and inwards
the diaphragm relaxes, moving back upwards
-
-
When we exhale, the diaphragm relaxes and moves upwards. This helps to reduce the volume in the thorax and push air out of the lungs. When the diaphragm relaxes, it moves upwards not downwards.
-