5 Written questions
5 Matching questions
- Blocking what plexus is indicated in treatment of intraabdominal malignancies & chronic pancreatitis; diagnostic (local or therapeutic (neurolytic block)?
- In regards to the cardiac plexus, where does sympathetic input arise from?
- Where do all sympathetics to the head & neck come from?
- What ganglions are supplied by the greater, lesser, & least splanchnic nerves?
- In regards to the SNS, where do preganglionic B fibers exit the spinal cord?
- a With the ventral ramus.
- b T1 or below
- c Greater & lesser: celiac plexus
Least: inferior mesenteric & hypogastric ganglia
- d Celiac plexus
- e Cervical ganglia.
5 Multiple choice questions
All preganglionic fibers arise below the stellate, blockade at this level affects all sympathetics above this level.
- ↑ in receptive field of nociceptive neurons d/t formation of more dendrite connections in the dorsal horn.
Dropout of inhibitory neurons.
- Paravertebral ganglia T1-L2 on the anterolateral surface of the vertebral bodies.
- Inferior cervical ganglion fuses w/ T1.
- Aspartate, glutamate, etc-released by c-fiber stimulation.
5 True/False questions
In regards to the SNS, where do preganglionic B fibers originate? → In the intermediolateral cell column segments T1-L2 or L3
What does C fiber sensitization lead to? → ↑ adrenergic receptors
↑ sensitivity to stimuli (↑ action potential per stimulus)
↑ "cross talk"
Blocking what plexus and ganglion is indicated in tx of painful conditions of the pelvis and perineum? → Superior hypogastric plexus & ganglion impar
What are the S/S of Horner's syndrome? → C1-C4
Describe the dorsal horn changes that occur w/ sympathetically mediated pain. → There is a sensitization of peripheral (C-fibers) & central (dorsal horn laminae 1& 2).