The autonomic nervous system, also known as the involuntary nervous system, regulates those facets in the body that occur automatically, such as breathing, blood pressure, digestion, heart beat, bladder function and narrowing or widening of the blood vessels.
Is the dry chemical in a fire extinguisher dangerous when inhaled?   The dry powder in ABC fire extinguishers is non-toxic but can cause skin irritation. You can check the manufacturer's website but this info is from the Kidde user guide â¦for their fire extinguishers and should be accurate.
Dry Chemical. Dry Chemical fire extinguishers extinguish the fire primarily by interrupting the chemical reaction of the fire triangle. Today's most widely used type of fire extinguisher is the multipurpose dry chemical that is effective on Class A, B, and C fires.arbon Dioxide fire extinguishers extinguish fire by taking away the oxygen element of the fire triangle and also be removing the heat with a very cold discharge. Carbon dioxide can be used on Class B & C fires. They are usually ineffective on Class A fires.