Respiratory system

• The respiratory system function is to obtain o2 from atmospheric air and deliver it to the blood so the cardiovascular system can distribute it to all of our cells
• At the end of the repiratory passages are the tiny airsacs called alveoli. This is where gas exchange occurs
• Gas exchange once the air with lots os arrives in the alveoli, it can diffuse through into a nearby capillary
• Ventilation will depend on both how fast and how deep our breathing is
• During expiration decreasing the volume which increases the pressure inside the thoracic cavity means that the air flows out
• During inspiration an increase volume we have a decrease in pressure and air flows into the lungs
• Bradypnoea refers to slow breathing
• Low oxygenation is referred to hypoxaemia
• Hyperventilation means fast breathing
• Hypotension means low blood pressure
• Pneumonia is an infection that inflames the air sacs in one or both lungs