* a) The dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves

* b) The preganglionic sympathetic fibers are usually longer than preganglionic parasympathetic fibers

* c) Acetylcholine is the neurotransmitter at the ganglia of both sympathetic and parasympathetic nervous system

* d) Botulin toxin blocks acetylcholine receptors

* e) Hemicholinium blocks the synthesis of acetylcholine

Answer a. T b. F c. T d. F e. T