Too Much of a Good Thing. The vitamin A content in beef liver is very high, with 100 grams of raw liver containing over three times the recommended daily value. As a fat-soluble vitamin, vitamin A accumulates in your own liver and can cause serious health issues at high levels.
Acetylcholine is released when a nerve impulse reaches a myoneural junction. It diffuses across the synaptic cleft and binds to cholinergic receptors on the muscle fibers, causing them to contract. cholinesterase splits acetylcholine into its components, thus stopping stimulation of the muscle fibers.
Acetylcholine is a neurotransmitterâa chemical messenger that helps carry signals across a nerve synapse. It was the first neurotransmitter to be discovered, and has been heavily studied. It is also the most abundant neurotransmitter and is present in both the central nervous system and peripheral nervous system.cetylcholine works together with the neurotransmitter dopamine to enable smooth movements. When there is an imbalance between acetylcholine and dopamine, movements can be shaky and uneven, a hallmark of Parkinsonâs disease. References: 1  Alzheimerâs disease medication fact sheet.