Air Passages Flashcards
Where are the nasal cavities found and what do they contain?
They can be found in the nose and contains blood vessels, mucous glands and cilia
What is cilia?
Hair like structures that sweep mucous and dust particles away from the lungs
What enable nasal passages to purify inhaled air?
Mucous membranes and cilia.
What is the function of mucous?
Dust particles stick to mucous to be swept away by cilia.
Why is important that mucous membrane keep the air moist?
This is so that the delicate membranes in the lungs do not dehydrate.
What are the capillaries’ functions in the nasal passages and where can they be found?
They help keep inhaled air warm and they can be found on the walls of nasal passages.
What is restricted by mucous and why?
The spreading of micro organisms and this is because mucous is antiseptic.
What is the pharynx?
It is a combined opening which air passes to the larynx and through which food moves to the oesophagus.
What is another way of referring to the voice box?
The Larynx
What is found in the larynx?
Vocal chords that must be vibrate once air passes through them.
What is the Trachea
This is a tube that allows only air to pass through.
What are the C -shaped rings in the trachea made of, why are they there and which way is the opening facing?
They are made of cartilage, they are the to ensure the trachea does not collapse as this would mean there would be less oxygen flow and they are opened facing the oesophagus.
What is the plural for bronchus?
Bronchi
What is are the bronchi and where do they lead?
They are the two branches of the trachea and leads to the two different lungs.
What are the bronchioles?
They are Smaller branches from the bronchi and they from a network of fine tubules which alveoli on the ends. They also reach every part of the lung.
