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8
Steps of the reflex arch of the knee jerk
Weak hitting of the patella with a hammer.
Dislocation activates stretch receptor in the muscle.
Signal enters spinal cord via dorsal roots and is directly transferred onto a motoneuron that activates the extensor muscle in the leg.
To rule out activity of the antagonistic flexor muscle, afferent collateral inhibition is needed.
Dislocation activates stretch receptor in the muscle.
Signal enters spinal cord via dorsal roots and is directly transferred onto a motoneuron that activates the extensor muscle in the leg.
To rule out activity of the antagonistic flexor muscle, afferent collateral inhibition is needed.
Flashcard info:
Author: szara
Main topic: Biology
Topic: Neurobiology
School / Univ.: Universität Osnabrück
City: Osnabrück
Published: 03.05.2010