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 Is Uranus Made Of. The standard model of Uranus is that it has a core of rocky material (similar to the mantle or crust of the Earth), an icy frozen mantle (mostly methane, ammonia, and water ice) and a gaseous hydrogen/helium atmopshere. it is mostly composed of various ices, like water, ammonia and methane.