5 Written questions
5 Matching questions
- What are NMDA receptors important for?
- Where does the cervical sympathetic chain receive its input from?
- What occurs with LTP?
- What forms the stellate ganglion?
- Where does the cardiac plexus receive its sympathetic input from?
- a Inferior cervical ganglion fuses w/ T1.
- b ↑ in receptive field of nociceptive neurons d/t formation of more dendrite connections in the dorsal horn.
Dropout of inhibitory neurons.
- c T1-T4
- d In triggering wide dynamic range (WDR) neurons that are responsible for generalization of specific nociceptive info.
- e T1 or below
5 Multiple choice questions
- Involves repetitive noxious stimuli (c-fibers)->prolonged discharge of dorsal horn cells-> progressive ↑ in APs per stimulus->long term potentiation (LTP).
- Celiac plexus
- Receives all presynaptic input enters from L1 & L2.
These ganglia are not fused but the coccygeal ganglia meet at the midline
- In the intermediolateral cell column segments T1-L2 or L3
- Somatic: preganglionic-Ach
PNS: preganglionic & postganglionic-Ach
SNS: preganglionic-Ach, postganglionic-NE
5 True/False questions
What are the collateral ganglia? → Cardiac, celiac, superior % inferior mesenteric ganglia.
What are the target organs of the superior cervical ganglions (C1-C4)? → Iris & ciliary body
Lacrimal & salivary glands
Describe the dorsal horn changes that occur w/ sympathetically mediated pain. → 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.
What type of neuron leave the ganglia and travel to segmental nerves & target organs? → Aspartate, glutamate, etc-released by c-fiber stimulation.
In regards to the cardiac plexus, where does parasympathetic input arise from? → Vagus & recurrent laryngeal nerves.