1.The sympathetic nervous system always excitatory to the organs it : 1417067
1.The sympathetic nervous system is always excitatory to the organs it innervates.
2.The parasympathetic nervous system inhibits the rate of heartbeat.
3.Most innervated blood vessels receive only sympathetic nerve fibers.
4.Only terminals of autonomic nerve fibers and motor neurons end in a single, enlarged knoblike structure that releases neurotransmitter.
5.By blocking the effect of acetylcholine at muscarinic but not nicotinic receptors, atropine is able to block parasympathetic effects.
6.The preganglionic fibers of the autonomic nervous system are cholinergic fibers.
7.The autonomic nervous system mainly controls smooth and cardiac muscles, but it can inhibit a few skeletal muscles.
8.The autonomic nervous system is the part of the peripheral nervous system that regulates smooth muscle, cardiac muscle, and glands.
9.The autonomic and somatic nervous systems are part of the efferent nervous system.
10.Dual innervation of organs by both branches of the autonomic nervous system allows a fine degree of control over these organs.