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Unformatted text preview: BIPN 100 Chris Childers Dr. Fortes Winter 09 Lecture 11 – February 2 nd Lecture 12 – February 4 th Sensory Receptors Tonic vs. Phasic Fine touch vs. pain receptors Rubbing a wound - Why does it feel good? Sympathetic vs. Paraympathetic Nervous Systems Pre-ganglionic vs. post-ganglionic neurons Adrenergic receptors Adrenal Cortex Compare and contrast tonic versus phasic receptors. Give some examples of each. Tonic Receptors – as long as the stimulus is present, the receptor will respond to the stimulus. Examples – stretch receptors, proprioception receptors, baroreceptors, chemoreceptors etc. Phasic Receptors – not monitored continuously, olfaction for example Tonic receptors are slowly adapting receptors that respond for the duration of a stimulus Phasic receptors rapidly adapt to a constant stimulus and turn off. They fire once more when the stimulus turns off. Compare and contrast fine touch / proprioception receptors with pain / temperature receptors. How is signal information translated in the spinal chord? Where do the signals cross to the contralateral side? Which fibers are they carried by?...
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- Winter '08
- Neurotransmitter, Nociceptor