Spinal Reflexes Flashcards
The arch Reflex consist of
- Receptor
- Sensory Neuron
- Integration center
- Motor Neuron
- Effector
Half of all nerve fiber along spinal cord are
Propriospinal fiblers
For golgi tendon, increased stretch means
increased firing rate of the afferent fibers
Interneurons are what compared to motor neurons
30 times numerous
Interneurons are found where
in all the grey spinal cord matter
Motor unit
motor neuron and muscles cells it synapses with
where does the sensory information sent after modulated
sends signal to effector mechanism, causing response
Anterior motor neurons are
Large alpha neurons and smaller gamma neurons
Alpha motor neurons enervate
Large skeletal muscles
Gamma motor neurons enervate
intrafusal fiber of the muscle spindle
Which reflex has no interneurons
Monosynaptic, sensory neuron directly synapse on motor neuron
Muscle stretch reflex is
monosynaptic
Interneurons between sensory and motor neurons are
Polysynaptic
Flexor-extensor reflex is
polysynaptic