What is Monosynaptic reflex arc?
The monosynaptic stretch reflex, or sometimes also referred to as the muscle stretch reflex, deep tendon reflex, is a reflex arc that provides direct communication between sensory and motor neurons innervating the muscle. This contraction allows the muscle to resist the force that initially caused the reflex.
Which is the correct order of a Monosynaptic reflex arc?
Visceral efferent. Which of the following lists the parts of a monosynaptic reflex arc in the correct sequence? Receptor, sensory neuron, motor neuron, effector.
What are the components of a monosynaptic reflex arc?
The simplest example of a spinal reflex is the monosynapic reflex arc, having four components:
- A receptor (in this case, the muscle spindle).
- An afferent component (sensory input).
- A central component (spinal processing).
- An efferent component (motor output).
How many neurons are in a monosynaptic reflex arc?
two neurons
When a reflex arc consists of only two neurons, one sensory neuron, and one motor neuron, it is defined as monosynaptic. Monosynaptic refers to the presence of a single chemical synapse.
What is a simple Monosynaptic reflex?
monosynaptic reflex A simple reflex that involves transmission of information from a sensory neuron to the appropriate motor neuron across a single synapse in the spinal cord. The knee-jerk reflex action is an example of a monosynaptic reflex (see stretch reflex). Compare polysynaptic reflex.
What are the 5 steps of the reflex arc in correct order?
So the reflex arc consists of these five steps in order-sensor, sensory neuron, control center, motor neuron, and muscle. These five parts work as a relay team to take information up from the sensor to the spinal cord or brain and back down to the muscles.
What is the correct order of reflex arc?
Stimulus, sensory neuron, intermediary neuron, motor neuron and defector organ is the correct order of general reflex arc.
What is the function of reflex arc?
Reflex arc, neurological and sensory mechanism that controls a reflex, an immediate response to a particular stimulus. The primary components of the reflex arc are the sensory neurons (or receptors) that receive stimulation and in turn connect to other nerve cells that activate muscle cells (or effectors), which perform the reflex action.
What are the steps of the reflex arc?
A simple reflex arc has five steps: A stimulus: An outside force that does something. Afferent, or sensory neurons, carry the impulse to the spinal cord. Interneurons in the spinal cord integrate and plan a response. Efferent, or motor neurons, carry out the response. The effector response is the action carried out.
What is an example of a polysynaptic reflex arc?
Polysynaptic reflexes: The include more than one chemical synapse in the reflex arc. They involve at least three neurons in the reflex action. Withdrawal reflexes are examples of polysynaptic reflexes. Having understood the components and types of reflex actions, let us now discuss some spinal reflexes as examples of reflex actions. Withdrawal Reflex