What does the inverse Myotatic reflex do?
What does the inverse Myotatic reflex do?
The Golgi tendon reflex (also called inverse stretch reflex, autogenic inhibition, tendon reflex) is an inhibitory effect on the muscle resulting from the muscle tension stimulating Golgi tendon organs (GTO) of the muscle, and hence it is self-induced.
What are the steps in a stretch reflex?
Terms in this set (5)
- Muscle Spindle Detects Stretch.
- Muscle stretch stimulates sensory nerve signals to travel to the CNS q.
- Sensory Neuron synapses on motor neurons.
- Motor neurons transmit nerve signals to extrafusal muscle fibers, resulting in contraction of the muscles (in response to being stretched)
Which of the following is the best example of a Polysynaptic reflex?
A stimulation of pain receptors in the skin initiates a withdrawal reflex, which is an example of polysynaptic reflex.
Why is the reflex called the inverse myotatic reflex?
This reflex is also called the inverse myotatic reflex because it is the inverse of the stretch reflex. Although muscle tension is increasing during the contraction, the alpha motor neurons in the spinal cord that supply the muscle are inhibited. However, antagonistic muscles are activated.
Where does the Myotatic reflex take place in the body?
The myotatic reflex is initiated by the muscle spindle, not the Golgi tendon organ.) As discussed below, spinal reflexes can be modulated by higher levels of the hierarchy, and thus a hyperactive or hypoactive stretch reflex is an important clinical sign to localize neurological damage.
Why is the Golgi tendon the opposite of the Myotatic reflex?
In this way, high force development that could injure muscles can be prevented by relaxation of the muscle. This reflex, which connects high force in the Golgi tendon organs with relaxation, is the opposite of the myotatic reflex, the stretch reflex, in which stretch elicits a reflex contraction.
Is there a tonic component to the Myotatic reflex?
In some patients, however, there is also a tonic component to the hypertonus; that is, the reflex contraction continues even after the muscle is no longer being lengthened. 62 Figure 6-8. EMG responses in the quadriceps muscle of a spastic patient to stretches of different velocities.