The Breathing System Flashcards
Learn all about the breathing system
What is in the breathing system
Nose Mouth Lungs Diaphram Ribcages
Describe inhalation
Lungs expand
Diaphram moves down
Ribcages move up and outwards
Describe exhalation
Lungs get smaller
Diaphram moves up
Ribcages move down and in
What is peak flow?
The maximum speed you can force air out of lungs
Measured with a peak flow meter
Which physical characteristics affect peak flow?
Gender
Age
Height
What is a spirometer
A piece of apparatus used to measure lung capacity, and to measure the volume of air breathed out
What is vital capacity?
The maximum volume of air a person can breath out after a big breath in
Why does your breathing rate increase in exercise?
To deliver more oxygen to your blood and to produce more energy for muscle contraction