What does acetylcholine (Ach) do when it binds to nicotinic receptors?

When acetylcholine binds to nicotinic receptors it: 

• Facilitates the release of norepinephrine and adrenaline from the adrenal glands
• Activates the sympathetic system by releasing norepinephrine
• Facilitates the contraction of skeletal muscle
• Nicotinic receptors play a role in long-term and working memory as well as memory formation, retrieval, and consolidation.