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 Satellites are Made Of If you mean man-made satellites ... Traditionally the main structure has been made of aluminum, although many now are some sort of composite. Usually it's some sort of graphite fiber-polycyanate face sheet over aluminum honeycomb, though it varies a lot by manufacturer and application.