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Unformatted text preview: tell brain about self
• Muscle spindles (4-10mm) iullongated ﬁbers-- – parallel to skeletal muscle
– sensitive to changes in muscle
– they alsp get an input from the brain--aka gamma motor neuron--they allow
the muscle to adjust sensativity by the brain. intra fusal ﬁbers dont do force
extrafusal do bitch -motoneurons allow the
CNS to adjust sensitivity
spindle. • Golgi tendon organs
– serial to skeletal muscle
fibers, located at junction of
muscle and tendon.
– sensitive to changes in
54 KNES 462 connected in series ©FK ‘08 KNES 462 in the muscle the incoming highway meets the outgoing highway Afferent meets efferent system
• receptors inform the
spinal cord/brain about
the ‘state of affairs’ in a
particular organ / tissue
embedded in the muscle
fibers, called muscle
56 Spinal cord / brain feedback loop Receptor KNES 462 ©FK ‘08...
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This document was uploaded on 03/19/2014 for the course KNES 462 at Maryland.
- Winter '13