How does the human brain produce neurotransmitters such as acetylcholine?

ACH synthesis brain: Ach in the brain is produced from acetyl-coa (from glucose metabolism) & from choline, which is actively transported across blood-brain barrier. Most dietary choline comes from phosphatidyl choline (major phospholipid in membranes of plants&animals) acetyl-coa & choline are independently synthesized in neuron cell body & transported along axon to synapse where they are joined into acetylcholine.