Define sympathetic neurotransmitters.
Chemicals released by sympathetic neurons, primarily norepinephrine and epinephrine.
What neurotransmitter is released by parasympathetic postganglionic axons?
Acetylcholine is released by parasympathetic postganglionic axons.
True or false: Norepinephrine is the primary neurotransmitter in the parasympathetic system.
FALSE
Norepinephrine is mainly associated with the sympathetic nervous system.
Fill in the blank: Acetylcholine acts on _______ receptors in the parasympathetic system.
muscarinic
What is the role of norepinephrine in the sympathetic nervous system?
It prepares the body for ‘fight or flight’ responses.
Define adrenergic receptors.
Receptors that respond to norepinephrine and epinephrine in the sympathetic nervous system.
True or false: Acetylcholine is always excitatory.
FALSE
Acetylcholine can be excitatory or inhibitory depending on the receptor type.
What type of receptors do sympathetic postganglionic axons target?
Adrenergic receptors target by sympathetic postganglionic axons.
Fill in the blank: Epinephrine is also known as _______.
adrenaline
What neurotransmitter is primarily used by sympathetic preganglionic axons?
Acetylcholine is primarily used by sympathetic preganglionic axons.
