Autonomic Nervous System Flashcards
Autonomic nervous system has what type(s) of fibers?
Visceral efferent and afferent fibers
Autonomic nervous system is divided into what two categories?
Sympathetic (Fight/flight)
Parasympathetic (Rest/digest)
Most organs have balance or ___ innervations
Dual
ANS involves ___ neuron(s), will synapse _____ the CNS.
2; outside
Is preganglionic neurons found in every spinal level?
No
Sympathetic is also know as_____ since preganglionic neurons originat __-__.
Thoracolumbar division;T1-L2
Stress causes an increase in BP, Heart rate, vasodilatation of blood vessels in extremities, pupils dilate, sweating increases, digestion stops. This is an example of which type of ANS?
Sympathetic
During sympathetic, blood vessel will _____ in extremities, while _____ in visceral organs.
Vasodilate; vasoconstrict
Adrenal Medulla is a _____ ganglion
Specialized
The wrapping of nerves on the carotid artery is _____ ____. (Fiber classification)
Postganglionic sympathetic
What type of neurons in sympathetic chain is located on the lateral gray horn T1-L2?
Preganglionic neurons
What type of neurons in sympathetic chain reside in chain C-S?
Postganglionic neurons
In the sympathetic chain, the preganglionic fibers run with the ventral rami and then connect to the ganglia by the _____.
“Rami Communicans”
Regarding sympathetic chain: White rami run to/from the ganglia?
To
Regarding sympathetic chain: White rami run to the ganglia in what segments?
T1-L2 only
Regarding sympathetic chain: ____ rami run from the ganglia
Gray
Regarding sympathetic chain: _____ fibers can run up and down the chain
Preganglionic
Regarding sympathetic chain: _____ is myelinated (white), _____ is not myelinated (gray).
Preganglionic; postganglionic
Regarding sympathetic chain: the fiber is _____ when jumping on the chain, and is _____ when comes off the chain.
White; gray
Preganglionics AND postganglionics are both found in only _____. Everywhere else is just _____.
T1-L2; Postganglionics
The sympathetic chain is only found in ___.
T1-L2
Cranial Sympathetics: all sympathetics in _____ originate from spinal cord
levels T1 and T2
Head
Cranial Sympathetics: all sympathetics in head are _____; synapse in superior cervical ganglion
Postganglionic
Cranial Sympathetics: postganglionic fibers distributed primarily along branches of _____ and _____ arteries.
internal and external carotid
What CN(s) are associated with parasympathetics are found in the head?
CN 3, 7, and 9
Parasympathetic is also known as?
Craniosacral division
What are the CN(s) that are associated with parsympathetics?
CN 3,7,9, and 10
Decrease in BP, Heart rate, increase digestion, increase salivation, constrict pupils, energy storage. What type of fibers is this?
Parasympathetic
Regarding parasympathetics: the ganglia resides ___ from CNS.
Far
Regarding parasympathetics: ganglia are in walls of organs are called “intramural”, EXEPT in the _____.
Head
-Ciliary Ganglion
-Otic Ganglion -Submandibular Ganglion
-Pterygopalatine Ganglion
(Intra/extramural?)
Extramural
What are the 3 CN that contain parasympathetics found in the cranial?
CN 3,7, 9
Which CN that contains parasympathetic fibers that are extra-cranial?
CN 10
Vagus Nerve (10) is found in the
- _____
- _____
- _____ -foregut and midgut
- Neck
- Thorax
- Abdomen-foregut and midgut
What are the 4 cranial parasympathetics? (Ganglions)
- Ciliary ganglion
- Pterygopalatine ganglion
- Otic ganglion (Deep face)
- Submandibular ganglion (Deep face)
What cranial nerve is associated with:
- Ciliary ganglion
- Pterygopalatine ganglion
- Otic ganglion (Deep face)
- Submandibular ganglion (Deep face)
COPS-3977
Does vagus nerve use trigeminal nerve?
Not at all
COPS-3977 all utilize which cranial nerve?
Trigeminal
Parasympathetics:
In head, postganglionic cell bodies located in ganglia hanging off a branch of the _____ nerve
Trigeminal
Greater petrosal nerve is preganglionic parasympathetic before synapsing where?
Pterygopalatine ganglion
Chorda tympani, leaves _____ nerve, passes through middle ear cavity, joins _____ nerve.
Facial nerve; Lingual nerve
After chorda tympani joins lingual nerve, it will go directly to the submandibular gland, or rejoin the lingual to the sublingual gland. Before going to sublingual gland, where does it need to synapse first?
Submandibular gland
This nerve is preganglionic parasympathetic, it has taste to anterior 2/3rd of tongue.
Chorda tympani
Lingual nerve fiber classification?
General sense
Fiber classification of lingual nerve after chorda tympani has joined.
Preganglionic parasympathetic, it has taste to anterior 2/3rd of tongue and general sense
Lesser petrosal nerve is preganglionic before synapsing at?
Otic ganglion.
Which nerve innervates partid gland?
Parotid branches of auriculotemporal nerve (CN V3). (Glossopharyngeal nerve will join V3 after synapsing at otic ganglion)
Cranial parasympathetics: Preganglionic parasympathetic cell bodies are in the_____
BRAIN
Cranial parasympathetics: Preganglionic parasympathetic axons distribute cranial nerves 3, 7 & 9, and synapse on one of four ganglia. (for _____) Vagus for _____.
HEAD; NECK
Cranial parasympathetics: _____ fibers distributed primarily along branches of the Trigeminal nerve (CN V).
Postganglionic
Preganglionic parasympathetic cell bodies are located in the _____ as nuclei.
Brainstem
