Involuntary movements in response to stimuli which usually employ circuits local to the spinal cord or in the cranial nerves, though not exclusively.
3
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2answers
90 views
Does body mass have a bearing on reflex speed?
A reflex is an unconscious action in response to some specific stimulus, e.g., blinking an eye, or pulling the hand away from a hot pin
I know from school biology, and reading online that withdrawal ...
6
votes
1answer
153 views
Why is the Patellar reflex not triggered when the tendon is extended slowly?
I have been previously told that the Patellar reflex (knee-jerk-reaction) exists to prevent the hyper-extension of the patellar tendon. Yet if the impact to the tendon is delivered slowly - i.e. by ...
9
votes
1answer
686 views
Why does looking at bright light triggers sneezing in some people?
Why does looking at bright light triggers sneezing in some people?
Are there any recent studies that have found a cause for this Photic sneeze reflex? The Wikipedia article only references studies ...
