Author Question: Harry suffers from cystic fibrosis and has severe breathing difficulties. His problems result from ... (Read 189 times)

Engineer · **on:** Feb 28, 2019

Harry suffers from cystic fibrosis and has severe breathing difficulties. His problems result from
A) genetic mutation in cilia production.
B) laryngospasms.
C) thick secretions that are difficult to transport.
D) lack of neural control of respiration.
E) reduced mucus secretions in the trachea.

Question 2

Regarding the sympathetic nervous system, the neurotransmitter ACh is
A) always excitatory when used in the synapses of the sympathetic nervous system.
B) broken down by COMT.
C) going to reduce the activity of the other neurotransmitter norepinephrine.
D) broken down by monoamine oxidase.
E) a chemical similar to the structure of adrenaline.