The “reverse myotatic reflex” is best described as follows:Group of answer choicesthe muscle spindle afferent is activated by muscle tension leading to a polysynaptic reflex in the spinal cord which inhibits the motor neuron to the antagonist musclethe Golgi tendon organ afferent is activated by muscle length leading to a monosynaptic reflex in the spinal cord which inhibits the motor neuron to the same musclethe Golgi tendon organ afferent is activated by muscle tension leading to a polysynaptic reflex in the spinal cord which inhibits the motor neuron to the same musclethe muscle spindle afferent is activated by muscle tension leading to a polysynaptic reflex in the spinal cord which inhibits the motor neuron to the same musclethe Golgi tendon organ afferent is activated by muscle tension leading to a monosynaptic reflex in the spinal cord which excites the motor neuron to the same muscle
Question
The “reverse myotatic reflex” is best described as follows:Group of answer choicesthe muscle spindle afferent is activated by muscle tension leading to a polysynaptic reflex in the spinal cord which inhibits the motor neuron to the antagonist musclethe Golgi tendon organ afferent is activated by muscle length leading to a monosynaptic reflex in the spinal cord which inhibits the motor neuron to the same musclethe Golgi tendon organ afferent is activated by muscle tension leading to a polysynaptic reflex in the spinal cord which inhibits the motor neuron to the same musclethe muscle spindle afferent is activated by muscle tension leading to a polysynaptic reflex in the spinal cord which inhibits the motor neuron to the same musclethe Golgi tendon organ afferent is activated by muscle tension leading to a monosynaptic reflex in the spinal cord which excites the motor neuron to the same muscle
Solution
The "reverse myotatic reflex" is best described as: the Golgi tendon organ afferent is activated by muscle tension leading to a polysynaptic reflex in the spinal cord which inhibits the motor neuron to the same muscle.
Here's why:
The reverse myotatic reflex, also known as the Golgi tendon reflex, is a protective mechanism of the body that prevents muscles from applying too much force and potentially causing damage. This reflex is initiated when the Golgi tendon organs (GTOs), which are located at the junction between muscles and tendons, are activated by an increase in muscle tension.
When the muscle tension increases, the GTOs send a signal through afferent nerve fibers to the spinal cord. This signal triggers a polysynaptic reflex, which involves multiple synapses and interneurons in the spinal cord.
The result of this reflex is the inhibition of the motor neuron that leads back to the same muscle that initially experienced the increase in tension. This inhibition causes the muscle to relax, thereby reducing the muscle tension and preventing potential damage.
Therefore, the statement that best describes the reverse myotatic reflex is: "the Golgi tendon organ afferent is activated by muscle tension leading to a polysynaptic reflex in the spinal cord which inhibits the motor neuron to the same muscle."
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
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
Activation of a sensory nerve from the muscle spindle causedcontraction of the extensor muscle and relaxation of the flexormuscle. The relaxation of the flexor muscle is an example ofA. negative feedback inhibition.B. postsynaptic inhibition.C. Renshaw cell-mediated inhibition.D. presynaptic inhibition.E. indirect inhibition
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.
Match the type of reflex with its description.Group of answer choicesRooting reflexSucking reflexStartle responseTonic neck reflexGrasp reflexStepping reflex
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