Neurotransmitters is chemical thing that has at sinaps...it function to sending electric impuls to axon..if neurotransmitters in the low level that makes a impuls slow to arrive the body..so reaction of body can slow motion..neurotrasmitters are slow when you takes a bad chemical thing as carbon monoxide and more...
1)left bronchus
2)pleura
3)trachea (starting)
4) cartilaginous rings
5)alveoli
6)atrium
7) diaphragm
Cartilaginous rings help in supporting the trachea from collapsing !!
Metabolism gives it the energy to chase the jackrabbit.
B. the outer most layer of the sun's atmosphere
