The Two Main Neurotransmitters Of The Autonomic Nervous System Are

Question: acetylcholine (ACH)

Answer: Primary transmitter of the ANS. (one of 2)

-Primary location: Synapses throughout the CNS; preganglionic neurons ending in the ganglia in both the symathetic and parasympathetic nercous systems (nicotonic); postganglionic neurons ending in neuroeffector target tissues in the parasympathetic nervous system (muscarinic) (p.140-142)

Question: acetylcholinesterase (AchE)

Answer: Enzyme that resides in the synaptic cleft and catalyzes the destruction of Ach. [**The suffix “erase” can be thought of as “wiping out” the Ach]

(p.143-143)

Question: Adrenergic

Answer: Receptors at the ends of postganglionic sympathetic neurons.

(p.144)

Question: autonomic nervous system (ANS)

Answer: Part of the motor division of the peripheral nervous system that provides for the involuntary control of vital functions of the cardiovascular, digestive, respiratory, and genitourinary systems

Question: THREE MAIN ACTIVITIES OF THE ANS

Answer: 1.) contraction of smooth muscle of the bronchi, blood vessels, GI tract, eye, and genitourinary tract

2.) contraction of cardiac muscle

3.) secretion of salivary, sweat, gastric, and bronchial glands

(p.137)

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