By contrast, postganglionic fibers in the parasympathetic division are cholinergic and use acetylcholine as a neurotransmitter. In the sympathetic nervous system, the postganglionic neurons of sweat glands release acetylcholine for the activation of muscarinic receptors.
The International Space Station (ISS) is made up of multiple materials. Lightweight metals, plastics, and carbon fibers make up the majority of the state. The International Space Station (ISS) is made up of multiple materials. Lightweight metals, plastics, and carbon fibers make up the majority of the state.
WHAT WEâRE MADE OF. What are o.b.Â® tampons made of? What are o.b.Â® tampons made of? o.b.Â® tampons are made of two types of rayon and a polyester string. The cover for o.b.Â® ORIGINALâ¢ is made of polyester/polyethylene non-woven material and that of o.b.Â® PRO COMFORTÂ® is made of polyethylene/polypropylene film.