Question

What are the neural basis and the components of patellar reflex?

Answer 1

Neural basis and the components of patellar reflex.

Patellar reflex is a monosynaptic reflex also called strech reflex.It is most rapid , Simple reflex arc with a single synapse between the afferent neuron and efferent neuron.

Patellar reflex is a spinal reflex involving the knee joint.In the patellar reflex when the patellar tendon is hit with any hammer causes contraction of quardriceps muscle and knee taking up.There are sensory neurons innervating muscles and tendons which attach to the patella.when the patellar tendon is hit with hammer stimulate the receptors within the muscle fibers and then activate sensory nerve fibers that are carried to spinal cord through afferent neurons.The afferent neurons will synapse with the motor neuron that is efferent neuron .The efferent neuron will innervate into the quardriceps muscle and increase the muscle tone and cause contraction.And this contraction causes raise the knee and patellar reflex occurs.

Components of patellar reflex include

Muscle spindle ,that contains receptors.

Sensory neurons that is afferent neuron

Neuromuscular junction

Motor neurons that is efferent neuron.