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SCI 221
Set 2
| Question | Answer |
|---|---|
| local potential | A slight shift away from the RMP in a specific region of the plasma membrane i |
| hyperpolarization | Movement of the membrane potential away from zero (thus be-low the usual RMP) |
| choroid plexuses | networks of capillaries that project from the pia mater into the lateral ventricles and into the roofs of the third and fourth ventricles. |
| ascending tracts | conduct sensory impulses up the cord to the brain. |
| descending tracts | conduct motor impulses down the cord from the brain |
| myotome | a skeletal muscle or group of muscles that receives motor axons from a given spinal nerve |
| efferent divisions of the autonomic nervous system (ANS) | sympathetic & parasympathetic |
| adaptation | the process by which the magnitude of the receptor potential decreases over time in response to a continu-ous stimulus |
| hypersecretion | Production of too much hormone by a diseased gland i |
| hyposecretion | oo little hormone is produced |