Respiratory system Flashcards
(44 cards)
What is the pathway of air?
Nose/Mouth, Trachea, Lungs, Bronchi, Bronchioles, Alveoli.
What is the function of the cilia?
To filter and catch dust
What is the function of the alveoli?
To exchange of carbon dioxide and oxygen
What is part of the Respiratory System?
Lungs, airways
What to muscles produce as a waste product of aerobic exercise?
Carbon dioxide
What do muscles produce as a waste product of anaerobic respiration?
Lactic acid
What are some adaptations of Alveoli?
.Large surface area
.rich blood supply
.1 cell thick
What is the definition of diffusion?
Partials moving from areas of high concentration to areas of low concentration.
What happens to the oxygen once it is diffused into the blood stream?
Oxygen combines with red blood cells and haemoglobin to form oxyhemoglobin.
What is the role of haemoglobin?
Carries oxygen and carbon dioxide around the body.
What gas’s is diffusing into the blood stream?
Oxygen
What gas’s is diffused into the alveoli?
Carbon dioxide
What process causes gaseous exchange to occur?
Diffusion
Where does the oxygen go once in the blood stream?
Working muscle/ agonist
Where are the intercostal muscles?
Muscles that lie in-between the ribs
What is the function of the intercostal muscles?
Help to lift the rib cage up during respiration
What is the diaphragm?
A muscular portion at the bottom of the lungs
What happens to the diaphragm during inhalation?
Contracts and moves downwards
What happens to the diaphragm during exhalation?
Relaxes and moves up into a dome shape
What happens to the intercostal muscles during inhalation?
Contracts and moves upwards
What happens to the intercostal muscles during exhalation?
Relax and move downwards.
What is Expiration/Exhalation?
Breathing out
What happens during inhalation?
.Contraction of the diaphragm causes it to flatten moving down
.Contraction of the intercostal cause the rib cage to rise
The size of the chest cavity increases
What happens when the chest cavity decreases in volume?
Pressure increases and air is expelled from the lungs.