Muscle Spindles Flashcards
Name the two examples of proprioceptors this card deck is all about?
MUSCLE SPINDLES
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GOLGI TENDON ORGANS (GTOs)
_________________ is the ability to know where your body is in space without the use of vision.
PROPRIOCEPTION
Muscle spindles detect which two things?
- RATE OF CHANGE IN MUSCLE LENGTH (STRETCH)
2. STATIC LENGTH OF THE MUSCLES
Muscle spindles are especially abundant in the ________ and ________, with muscles capable of fine contractions.
HAND
and
FOOT
Name 2 small muscles where muscle spindles are scarce?
TONGUE
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OCULAR MUSCLES
What is the unipolar neuron coming from a muscle spindle referred to as?
1a fibre
one ‘a’ fibre
A muscle spindle sends information about ___________ to the CNS.
STRETCH
Gamma motor neurons from CNS _____________ intrafusal fibres.
INNERVATE
Alpha motor neurons (MN) are located externally on the __________ ____________.
EXTRAFUSAL FIBRES
Gamma motor neurons (MN) are located internally on the __________ ____________.
INTRAFUSAL FIBRES
Intrafusal fibres are located inside __________ __________.
MUSCLE SPINDLES
Describe 1a fibre?
UNIPOLAR NEURON COMING FROM A MUSCLE SPINDLE FIBRE