Autonomics Flashcards
The sympathetic system is AKA?
Preganglionic neurons originate where?
Thoracolumbar division
T1-L2
Stress causes an increase in?
BP Heart Rate Vasodilation of blood vessels in extremities Pupils dilate Sweating increases Digestion stops
Where is the sympathetic chain ganglia located? (Sympathetic trunk)
Both sides of spine
What’s the name of a specialized ganglion?
Adrenal Medulla
Ganglias are made from?
Neuro crest cells
What color are Preganglionics?
White
What color are Postganglionics?
Gray
Which type is myelinated?
Preganglionics or Postganglionics
Preganglionics
Preganglionic neurons will begin where?
Lateral gray horn T1-L2
Postganglionic neurons will reside where?
In chain C-S
The preganglionic fibers run with the ____ ____ and then connect to the ganglia by the ____ ____
ventral rami; rami communicans
White rami run __ the ganglia (T1-L2 ONLY)
TO
Gray rami run ____ the ganglia
FROM
Preganglionic fibers can run ___ and ____ the chain?
UP and DOWN
Postganglionic fibers distributed primarily along branches of ____ and ____ ____ aa.
**(wrap around to go to destination)
Internal and External Carotid aa.
All sympathetics in head originate from spinal cord levels?
T1-T2
All sympathetics in head are _____; synapse in ____ ____ ____
postganglionic; superior cervical ganglion
How many ganglions in the Neck and what are there names?
3
Inferior Cervical
Middle Cervical
Superior Cervical
Parasympathetics are AKA?
Craniosacral division
Where do Parasympathetics begin?
At Cranial nerves: 3, 7, 9, 10
or
Sacral levels: 2, 3, 4
Parasympathetics decrease in?
BP Heart rate increase digestion salivation constrict pupils energy storage
Ganglia in walls of organs are?
Except in head
Intramural
In head, postganglionic cell boddies located in ganglia hanging off a branch of the _____ nerve
trigeminal
Chorda tympani leaves facial n, passes through middle ear cavity and joins which nerve?
lingual
CN 9 exits the skull where?
Jugular Foramen with 10 and 11
Preganglionic parasympathetics cell bodies are in the?
BRAIN
Preganglionic parasympathetics axons distribute CN 3, 7, & 9 and synapse on one of four ganglia for?
The head
Preganglionic parasympathetics axons distribute CN 10 and synapse on _____ ganglion for?
autonomic; Neck
