Question: All of the following are typical characteristics of neurotransmitters except ________.

Answer: They are released into the bloodstream before reaching the postsynaptic cell

Question: A cholinergic synapse uses _______ as its neurotransmitter.

Answer: Acetylcholine

Question: What is the most common inhibitory neurotransmitter in the brain?

Answer: y-aminobutyric acid (GABA)

Question: Which of these happens first in an cholinergic synaptic transmission?

Answer: The synaptic vesicles release acetylcholine

Question: Which of these happens first in an adrenergic synaptic transmission?

Answer: G protein dissociates from the NE Receptor

Question: Some antidepressant drugs act by inhibiting monoamine oxidase. What is the function of this enzyme?

Answer: It breaks down monoamines

Question: Which of these does not contribute to the cessation of the signal in a synaptic transmission?

Answer: Synaptic vesicles secrete neurotransmitter by exocytosis.

Question: Which neurotransmitter excites skeletal muscle and inhibits cardiac muscle?

Answer: Acetylcholine

Question: Inhibitory postsynaptic potentials are associated with which of the following?

Answer: Hyperpolarization of the cell membrane

Question: The opening of ______ gates produces an _______.

Answer: Chloride; IPSP