0
ACH
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What synapses release acetylcholine?
sympathetic preganglionic axon parasympathetic preganglionic axon parasympathetic postganglionic axon
What fibers are located in the white rami?
Sympathetic preganglionic.
Does sympathetic or parasympathetic stimulation produce thicker saliva with more mucus?
Sympathetic. Parasympathetic secretes thin saliva rich in amylase.
Which division of the nervous system has short preganglionic neurons?
sympathetic
Which endocrine gland is directly innervated by sympathetic preganglionic axons?
pituitary gland
Preganglionic sympathetic fibers trigger the release of?
epinepherine and norepinephrine
Do the sympathetic fibers leave the CNS at the thoracolumbar region?
All preganglionic sympathetic fibers leave the CNS at the thoracolumbar region, yes.
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
Does coronary vessels have both parasympathetic and sympathetic innervation?
Yes. Sympathetic nerve stimulation dilates the blood vessels. Parasympathetic nerve stimulation constricts the blood vessels. The sympathetic nerve stimulation effect is more pronounced.
Sympathetic nerves may leave the spinal cord at which vertebra?
Preganglionic sympathetic axons leave the spinal cord throughout the thoracic spine and the upper lumber spine (T1-L2).These preganglionic sympathetic axons exit the spinal canal within the anterior primary ramus and then quickly separate to travel via the white ramus communicans to the ipsilateral sympathetic trunk.
How do the kidneys react to sympathetic nervous system stimulation?
Sympathetic stimulation results in renin secretion by the kidneys and causes a relaxation of the bladder. Accompanied by a constriction of the bladder sphincter, sympathetic stimulation tends to decrease urination and promote fluid retention.
Does the white rami communicans contain fibers of a preganglionic or postganglionic neurons?
Preganglionic because they are myelinated. FALSE
