adrenel medulla
No, parasympathetic postganglionic axons secrete the neurotransmitter acetylcholine, not norepinephrine. Norepinephrine is the primary neurotransmitter used by postganglionic neurons of the sympathetic nervous system.
Sympathetic postganglionic neurons release norepinephrine,
No. They secrete acetylcholine only.
Cholinergic neurons secrete acetylcholine.
Sympathetic
No
The two main neurotransmitters released by the axon terminals of autonomic neurons are acetylcholine and norepinephrine. Acetylcholine is predominantly released by parasympathetic neurons, while norepinephrine is released by sympathetic neurons.
specific cardiac and smooth muscle fibers
acytelcholine in pre-ganglionic neurons, norepinephrine in most post-ganglionic neurons.
None, nerve endings aren't endocrine glands, are they?
Adrenal gland, specifically its inner cortex.
norepinephrine