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.
The International Space Station (ISS) is a habitable human-made satellite that orbits Earth at an altitude of between 330 km (205mi) and 435 km (270 mi). The ISS comprises pressurised modules for astronauts to live in, external trusses for propulsion, solar arrays for power and many other amazing components.