Question

Pick a specific type of neurotransmitter and explain its specific function. Please type a paragraph containing at least 8 sentences

Answer 1

Acetylcholine synthesized from acetic acid and choline by the enzyme choline acetyltransferase, then transported into synaptic vesicles. Acetylcholine (ACh) is the neurotransmitter that motor neurons use to control skeletal muscle contraction. ACh is synthesized in the cytoplasm of the motor neuron and is stored in synaptic vesicles near the distal end of its axon. When a nerve impulse a series of action potentials, reaches the end of the axon, some of these vesicles release acetylcholine into the synaptic cleft Acetylcholine diffuses rapidly across the synaptic cleft and binds to specific protein molecules in the muscle fiber membrane, increasing the membrane permeability to sodium ions. The entry of these charged particles into the muscle cell stimulates a muscle impulse an electrical signal very much like a nerve impulse. A muscle impulse changes the muscle cell membrane in a way that transmits the impulse in all directions along and around the muscle cell, into the transverse tubules, into the sarcoplasm, and ultimately to the sarcoplasmic reticulum and the cisternae.

It controls skeletal muscle actions. Stimulates skeletal muscle contraction at neuromuscular junctions. May excite or inhibit at autonomic nervous system synapses.