Answer:
Atelectasis is a condition in which all or part of a lung becomes airless and collapses. Blockage of the bronchial tubes is a common cause of atelectasis. Shortness of breath can develop if oxygen levels are low or pneumonia occurs.
HOPE THIS HELPED!!!!!! XDDD
oop-...
Um, why they want me to write more then 20 words ?
Answer:
involuntary muscle?
or
the muscle of the heart?
Explanation:
I don't know exactly what your asking about the cardiac muscle.
It is your heart muscle and it is involuntary, meaning that if moves on its own without your conscious effort.
Answer:
c. synaptic cleft
Explanation:
Ligand-gated cation channels respond by opening due to neurotransmitter binding and located at synaptic clefts.
Answer:
place it over the nose,mouth and chin. Fit the flexible nose piece over the bridge of the nose. Secure it on the head with the ties
Explanation:
