5 Written questions
5 Matching questions
- What ganglions are supplied by the greater, lesser, & least splanchnic nerves?
- Where does the cardiac plexus receive its sympathetic input from?
- Blocking what ganglion is indicated in treatment & diagnosis of pain syndromes, vascular insufficiency, hyperhidrosis, and dysrhythmias?
- What does sympathetically mediated pain involve (CRPS)?
- Blocking what ganglion will knock out all the sympathetics, why, and what can it result in?
- a An initiating event-crush, stretch, axotomy, ischemia, etc... to a peripheral nerve.
- b T1-T4
- c Stellate ganglion. All preganglionic fibers arise below the stellate ganglion.
Could result in Horner's syndrome
- d Stellate
- e Greater & lesser: celiac plexus
Least: inferior mesenteric & hypogastric ganglia
5 Multiple choice questions
- A-beta fibers form abnormal connections in shallow laminae (1 & 2)->normal sensory input interpreted as high intensity noxious stimuli.
↑ gene expression for receptors for pain related neurotransmitters (substance P).
↓ opioid binding sites.
- Ptosis (drooping of eyelid), flushing, miosis (pupillary constriction), anhidrosis (lack of sweating).
- Aspartate, glutamate, etc-released by c-fiber stimulation.
- Lumbar sympathetic ganglion.
- ↑ in receptive field of nociceptive neurons d/t formation of more dendrite connections in the dorsal horn.
Dropout of inhibitory neurons.
5 True/False questions
What does the sensitization of peripheral (C-fibers) & central (dorsal horn laminae 1& 2) involve? → ↑ spontaneous neuronal activity d/t ectopic pacemakers (probably dysfunctional Na channels)
↑ response to stimuli
↓ stimulus threshold (less stimulation required to cause nerves to fire).
What type of neuron leave the ganglia and travel to segmental nerves & target organs? → Postgagnlionic neurons (unmyelinated C fibers).
What are the target organs of the superior mesenteric ganglion? → Lower colon & rectum
In regards to the cardiac plexus, where does sympathetic input arise from? → Cervical ganglia.
What forms the stellate ganglion? → Inferior cervical ganglion fuses w/ T1.