Stimulation of the Golgi tendon organs result in which of the following changes in the reflex arc?Multiple ChoiceStimulation of a stimulatory interneuronStimulation of an inhibitory neuronDecreased action potentials in alpha motor neuronsContraction of skeletal muscle fibersBoth "stimulation of an inhibitory neuron" and "decreased action potentials in alpha motor neurons" are correct.
Question
Stimulation of the Golgi tendon organs result in which of the following changes in the reflex arc?Multiple ChoiceStimulation of a stimulatory interneuronStimulation of an inhibitory neuronDecreased action potentials in alpha motor neuronsContraction of skeletal muscle fibersBoth "stimulation of an inhibitory neuron" and "decreased action potentials in alpha motor neurons" are correct.
Solution
The correct answer is "Both 'stimulation of an inhibitory neuron' and 'decreased action potentials in alpha motor neurons' are correct."
Here's why:
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The Golgi tendon organs (GTOs) are proprioceptive sensory receptors located in the tendons, which are sensitive to changes in muscle tension.
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When the GTOs are stimulated, they send signals to the spinal cord.
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In the spinal cord, these signals stimulate inhibitory interneurons.
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These inhibitory interneurons then inhibit the activity of the alpha motor neurons.
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As a result, there is a decrease in action potentials in the alpha motor neurons, which leads to muscle relaxation.
So, the stimulation of the GTOs leads to both the stimulation of an inhibitory neuron and a decrease in action potentials in the alpha motor neurons.
Similar Questions
Which of the following is INCORRECT about the "reverse myotatic reflex"?Group of answer choicesit causes inhibition of alpha motor neurons to the affected muscleit is triggered by excitation of Golgi tendon organ afferentsit involves activation of a spinal interneuronit is not a monosynaptic pathwayit is activated primarily by changes in muscle length
The action potential is conducted into a skeletal muscle fiber byQuestion 7Select one:a.transverse tubules.b.neuromuscular junctions.c.motor end platesd.triads.e.sarcoplasmic reticulum.
Which of the following best describes the monosynaptic pathway of the myotatic reflex?Group of answer choicesthe muscle spindle afferent axon enters the spinal cord and synapses onto an interneuron which then synapses onto an alpha motor neuronthe muscle spindle afferent axon enters the spinal cord and synapses onto an alpha motor neurona nociceptor afferent axon enters the spinal cord and synapses onto an interneuron which synapses onto an alpha motor neuronthe Golgi tendon organ afferent axon enters the spinal cord and synapses onto an alpha motor neuronthe muscle spindle afferent ending synapses directly onto an extrafusal muscle fibre
Reciprocal innervationMultiple Choiceis associated with the Golgi tendon reflex.stimulates antagonistic muscles.results in reduced resistance to the reflex.reinforces the withdrawal reflex.inhibits the stretch reflex.
What stimulates Golgi tendon organs?Multiple ChoiceA muscle is contracting with minimal tension.A muscle is stretched nearly to its limit.A muscle starts to relax after strenuous exercise.A muscle has become metabolically active.
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