force, rate, direction and range are all _____________ (specific/less specific)
specific
force receptors
Pacinian corpuscles
Ruffini end organs
Golgi massoni
Golgi type endings
In deep CT of body
Muscle spindle contains
Nuclear bag and multiple nuclear chain fibers
Parallel to the muscle in which they lie
Both the bag and the chain have a ventral equatorial region which is non-contractile and 2 non contractile polar regions containing intrafusal muscle fibers while contract and elongate appropriately with the muscle in which it lies
Annulospinal endings
Around the central portion of the bag and the chain
attach to your 1A afferents (or A alpha?) which carry information back to the cerebellum
The nuclear bag is both…
phasic and tonic in nature
Nuclear chain fibers respond to…
speed of contraction and length of change in the muscle
tonic receptors
---respond to length change of skeletal muscle of which they lie
flower spray endings
wrap around polar regions of spindle and attach to type 2 or A beta
gamma dynamic efferent nerve
bag fiber: make sensitive to speed of contraction (1A)
gamma static efferent nerve
bag/chain fibers: sensitive to length of change of muscle (1A, 2)