Studied by 5 peopleGoblet cells
________ and cilia are found in trachea and bronchi.
microbes
Goblet cells and cilia protect alveoli in the lungs from inhaled dust and ________.
bronchioles
The walls of the trachea, bronchi and ________ are lined with smooth muscle which can contract and relax.
Trachea
________ is a tube lined with C- shaped supporting rings.
waste
The respiratory system also removes ________ such as carbon dioxide.
smooth muscle
During exercise, ________ will relax which causes airway to expand and allows more air to flow through them.
smooth muscle
Contracting ________ is a cause of asthma.
Goblet cells
________ produce sticky mucus which traps them.
Smooth muscle
________ will contract if toxic gas is present to restrict airflow by narrowing the airways.
Inspiration
Breathing in is known as _________
Expiration
Breathing out is known as __________
nasal cavity
As the air passes through the _______ it is warmed slightly.
trachea
Air must pass through the ________
cartiliage
The C shaped supporting rings are made out of _______
expand
The trachea will ______ to let more air in
diffusion
Gas exchange happens in the alveoli by _______
moist lining
Oxygen dissolves in the __________ so it can diffuse into the blood
concentration gradient
Large capillary network maintains diffusion and _____________
diffusion
Large surface area increases
Thin
______ walls means there is a short diffusion distance
Note
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