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Does the gray rami communicans contain fibers of a preganglionic or postganglionic neurons?
could be preganglionic
Which division of the autonomic nervous system is characterized by short preganglionic and long postganglionic fibers?
The parasympathetic nervous system has long preganglionic and short postganglionic fibers
Are parasympathetic postganglionic fibers generally come from adrenergic fibers?
No, parasympathetic postganglionic fibers do not come from adrenergic fibers. Parasympathetic postganglionic fibers release acetylcholine as their neurotransmitter, whereas adrenergic fibers release norepinephrine.
The parasympathetic nervous system is characterized by peripheral ganglia is usually near?
organs and by short postganglionic fibers
What parasympathetic ganglion sends postganglionic fibers to the sublingual and submandibular salivary glands?
The submandibular ganglion sends postganglionic fibers to the sublingual and submandibular salivary glands.
Are unmyelinated cortical fibers found in the cerebral hemispheres?
Yes, unmyelinated cortical fibers can be found in the cerebral hemispheres. These fibers are a type of nerve cell projection that lack the protective myelin sheath, which is typically found in myelinated fibers. Unmyelinated fibers are involved in transmitting nerve impulses and can be found throughout the brain, including the cerebral hemispheres.
Postganglionic axons secrete acetylcholine cholinergic fibers?
Parasympathetic
What is innervated by postganglionic fibers arising from the cervical ganglia?
the eyes
What releases catecholamines as a neurotransmitter?
it would be postganglionic sympathetic fibers
Which nerve fiber do impulses travel slowly?
Unmyelinated nerve fibers conduct impulses more slowly than myelinated nerve fibers. Myelinated nerve fibers have a fatty substance called myelin sheath that allows for faster transmission of impulses compared to unmyelinated fibers without this sheath.
Where do sympathetic postganglionic fibers end?
Sympathetic postganglionic fibers end in effector organs such as smooth muscles, cardiac muscles, and glands. They innervate these structures to modulate their activity in response to stress or stimulation of the sympathetic nervous system.
Does post ganglionic fibers release epinephrine?
No, postganglionic fibers release norepinephrine, not epinephrine. Epinephrine is released by the adrenal medulla.
